Finding the Fourth Proportional to 613,402.20, 920,132.10 and 192,691.80
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Solution
The fourth proportional to 613,402.20, 920,132.10 and 192,691.80 is: 289,046.75
Step by Step Solution
- Step 1: Write the proportion equation
613,402.20 : 920,132.10 = 192,691.80 : x - Step 2: Convert to fraction form
613,402.20/920,132.10 = 192,691.80/x - Step 3: Cross multiply
613,402.20x = 920,132.10 × 192,691.80 - Step 4: Simplify right side
613,402.20x = 177,301,910,586.78 - Step 5: Solve for x
x = 177,301,910,586.78/613,402.20 - Step 6: Final answer
x = 289,046.75
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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.