This document compares the dimensions of a tennis court and ping pong table. A tennis court is much larger, measuring 78 feet by 36 feet with a length to width ratio of 2.1:1. In contrast, a ping pong table is only 9 feet by 5 feet with a ratio of 1.8:1. While both involve rackets and a ball, tennis courts and ping pong tables have different dimensional ratios and thus are not proportional in size.