Given the task definition and input, reply with output. In this task, you will be given a list of numbers. The goal is to divide all the numbers in the list by a constant such that the sum of the resulting list is 1. The output should be rounded to 3 decimals.

[215.357, 96.12, 137.979, -39.087, 220.86]

[ 0.341  0.152  0.219 -0.062  0.35 ]