Finding the Fourth Proportional to 361,812.62, 542,305.20 and 172,003.70
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Solution
The fourth proportional to 361,812.62, 542,305.20 and 172,003.70 is: 257,808.87
Step by Step Solution
- Step 1: Write the proportion equation
361,812.62 : 542,305.20 = 172,003.70 : x - Step 2: Convert to fraction form
361,812.62/542,305.20 = 172,003.70/x - Step 3: Cross multiply
361,812.62x = 542,305.20 × 172,003.70 - Step 4: Simplify right side
361,812.62x = 93,278,500,929.24 - Step 5: Solve for x
x = 93,278,500,929.24/361,812.62 - Step 6: Final answer
x = 257,808.87
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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.