Finding the Fourth Proportional to 371,385.70, 557,158.51 and 115,213.08
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Solution
The fourth proportional to 371,385.70, 557,158.51 and 115,213.08 is: 172,844.43
Step by Step Solution
- Step 1: Write the proportion equation
371,385.70 : 557,158.51 = 115,213.08 : x - Step 2: Convert to fraction form
371,385.70/557,158.51 = 115,213.08/x - Step 3: Cross multiply
371,385.70x = 557,158.51 × 115,213.08 - Step 4: Simplify right side
371,385.70x = 64,191,947,697.28 - Step 5: Solve for x
x = 64,191,947,697.28/371,385.70 - Step 6: Final answer
x = 172,844.43
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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.