Finding the Fourth Proportional to 381,246.92, 571,874.49 and 115,009.74
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Solution
The fourth proportional to 381,246.92, 571,874.49 and 115,009.74 is: 172,515.85
Step by Step Solution
- Step 1: Write the proportion equation
381,246.92 : 571,874.49 = 115,009.74 : x - Step 2: Convert to fraction form
381,246.92/571,874.49 = 115,009.74/x - Step 3: Cross multiply
381,246.92x = 571,874.49 × 115,009.74 - Step 4: Simplify right side
381,246.92x = 65,771,136,407.53 - Step 5: Solve for x
x = 65,771,136,407.53/381,246.92 - Step 6: Final answer
x = 172,515.85
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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.