Finding the Fourth Proportional to 381,388.42, 572,175.12 and 115,133.04
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Solution
The fourth proportional to 381,388.42, 572,175.12 and 115,133.04 is: 172,727.48
Step by Step Solution
- Step 1: Write the proportion equation
381,388.42 : 572,175.12 = 115,133.04 : x - Step 2: Convert to fraction form
381,388.42/572,175.12 = 115,133.04/x - Step 3: Cross multiply
381,388.42x = 572,175.12 × 115,133.04 - Step 4: Simplify right side
381,388.42x = 65,876,260,977.96 - Step 5: Solve for x
x = 65,876,260,977.96/381,388.42 - Step 6: Final answer
x = 172,727.48
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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.