Finding the Fourth Proportional to 381,384.42, 572,169.12 and 115,129.04
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Solution
The fourth proportional to 381,384.42, 572,169.12 and 115,129.04 is: 172,721.48
Step by Step Solution
- Step 1: Write the proportion equation
381,384.42 : 572,169.12 = 115,129.04 : x - Step 2: Convert to fraction form
381,384.42/572,169.12 = 115,129.04/x - Step 3: Cross multiply
381,384.42x = 572,169.12 × 115,129.04 - Step 4: Simplify right side
381,384.42x = 65,873,281,503.24 - Step 5: Solve for x
x = 65,873,281,503.24/381,384.42 - Step 6: Final answer
x = 172,721.48
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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.