一直以来 ,解决比例中项问题对于初中学生而言总是一个难点 .在解决这个问题的同时要牵扯到许多《几何》与《代数》的知识 ,因此 ,常常被称做综合性题目 ,往往出现在中考的试卷中 ,使学生对这类问题有些不知所措 ,甚至有些学生对这类问题有点谈虎色变 .笔者在多年的初中数学教 It has always been a difficult problem for junior high school students to solve the problem in proportion. In solving this problem, we must also include many knowledge of Geometry and Algebra. Therefore, it is often referred to as a comprehensive problem and often appears. In the examination papers, students are somewhat overwhelmed by such problems, and some students even talk about this kind of problem. The author has taught mathematics in junior high school for many years.