如何比较两个列表值并将它们舍入到第一个列表值而不在内部添加它们

I have two list values

我有两个列表值

Example:
first list total 285, second list total 220

first List values:
x1 = 55
x2 = 105
x3 = 100
x4 = 25

second List values:
y1 = 25
y2 = 25
y3 = 50
y4 = 120
Example:
fi