Finding the Fourth Proportional to 381,245.92, 571,872.99 and 115,008.74
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Solution
The fourth proportional to 381,245.92, 571,872.99 and 115,008.74 is: 172,514.35
Step by Step Solution
- Step 1: Write the proportion equation
381,245.92 : 571,872.99 = 115,008.74 : x - Step 2: Convert to fraction form
381,245.92/571,872.99 = 115,008.74/x - Step 3: Cross multiply
381,245.92x = 571,872.99 × 115,008.74 - Step 4: Simplify right side
381,245.92x = 65,770,391,444.89 - Step 5: Solve for x
x = 65,770,391,444.89/381,245.92 - Step 6: Final answer
x = 172,514.35
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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.