Finding the Fourth Proportional to 381,380.42, 572,163.12 and 115,125.03
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Solution
The fourth proportional to 381,380.42, 572,163.12 and 115,125.03 is: 172,715.46
Step by Step Solution
- Step 1: Write the proportion equation
381,380.42 : 572,163.12 = 115,125.03 : x - Step 2: Convert to fraction form
381,380.42/572,163.12 = 115,125.03/x - Step 3: Cross multiply
381,380.42x = 572,163.12 × 115,125.03 - Step 4: Simplify right side
381,380.42x = 65,870,296,354.89 - Step 5: Solve for x
x = 65,870,296,354.89/381,380.42 - Step 6: Final answer
x = 172,715.46
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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.