Write a Python program to sort a tuple by its float element.
Example 1:
Input: ('34.6', '203.4', '44.2', '11.9', '12.6', '15.3')
Output: ('11.9', '12.6', '15.3', '34.6', '44.2', '203.4')
Example 2:
Input: ('1.5', '10.7', '0.3', '5.5', '3.6', '1.9')
Output: ('0.3', '1.5', '1.9', '3.6', '5.5', '10.7')