Finding the Fourth Proportional to 371,448.80, 557,140.80 and 122,130.80
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Solution
The fourth proportional to 371,448.80, 557,140.80 and 122,130.80 is: 183,185.55
Step by Step Solution
- Step 1: Write the proportion equation
371,448.80 : 557,140.80 = 122,130.80 : x - Step 2: Convert to fraction form
371,448.80/557,140.80 = 122,130.80/x - Step 3: Cross multiply
371,448.80x = 557,140.80 × 122,130.80 - Step 4: Simplify right side
371,448.80x = 68,044,051,616.64 - Step 5: Solve for x
x = 68,044,051,616.64/371,448.80 - Step 6: Final answer
x = 183,185.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.