Finding the Fourth Proportional to 381,699.70, 572,549.55 and 132,381.70
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Solution
The fourth proportional to 381,699.70, 572,549.55 and 132,381.70 is: 198,572.55
Step by Step Solution
- Step 1: Write the proportion equation
381,699.70 : 572,549.55 = 132,381.70 : x - Step 2: Convert to fraction form
381,699.70/572,549.55 = 132,381.70/x - Step 3: Cross multiply
381,699.70x = 572,549.55 × 132,381.70 - Step 4: Simplify right side
381,699.70x = 75,795,082,763.24 - Step 5: Solve for x
x = 75,795,082,763.24/381,699.70 - Step 6: Final answer
x = 198,572.55
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1.5x scale
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.