The proportion of men to women in the college has changed dramatically over the years.

近年来，这个学院的男女学生比例出现了剧变。

《牛津词典》

The proportion of the population who are over retirement age has grown tremendously in the past few years.

超过退休年龄的人口的比例在过去几年中已急剧增长。

《柯林斯英汉双解大词典》

The proportion of women in the profession had risen to 17.3%.

从事那个职业的女性比例已经增长到17.3%。

《柯林斯英汉双解大词典》

Mexicans comprise a large proportion of the more than 12 million illegal immigrants in the United States.

VOA: standard.2009.04.12

Your caring, your moral feelings towards other creatures to the extent of the proportion of genes that you share with them.

你的关心，你对他人的道德情感,取决于你和他们拥有多少,相同的基因。

耶鲁公开课 - 心理学导论课程节选

that it could be blown out of proportion and misused by the principal or by third parties.

那么事态可能会扩大，安乐死的做法会被主要相关人员和第三方滥用。

对于安乐死的看法 - SpeakingMax英语口语达人

The National Center for Education Statistics (NCES) of the U.S. Department of Education reported that the proportion of U.S. children aged three to five who were enrolled in preprimary programs more than doubled between 1965 and 1990, and as shown in Figure 1, modest gains continued in the 1990s.

UNESCO: II Part Analytic Section

Although the proportion of U.S. Hispanics is scaling upwards rapidly, corporations and advertisers continue to underestimate the importance of Hispanics as an economic and business development engine.

FORBES: Advertisers Must Pay Attention to Hispanic Consumers as Rising Trendsetters in 2013

In fact, the proportion of U.S. homes in some stage of foreclosure has risen to one in 32 recently, from one in 37 a year ago.

FORBES: Real Estate Advisor