Finding the Fourth Proportional to 381,380.93, 572,163.87 and 115,125.53
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Solution
The fourth proportional to 381,380.93, 572,163.87 and 115,125.53 is: 172,716.21
Step by Step Solution
- Step 1: Write the proportion equation
381,380.93 : 572,163.87 = 115,125.53 : x - Step 2: Convert to fraction form
381,380.93/572,163.87 = 115,125.53/x - Step 3: Cross multiply
381,380.93x = 572,163.87 × 115,125.53 - Step 4: Simplify right side
381,380.93x = 65,870,668,780.60 - Step 5: Solve for x
x = 65,870,668,780.60/381,380.93 - Step 6: Final answer
x = 172,716.21
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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.