Finding the Fourth Proportional to 260,998.20, 391,497.30 and 172,351.80
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Solution
The fourth proportional to 260,998.20, 391,497.30 and 172,351.80 is: 258,527.70
Step by Step Solution
- Step 1: Write the proportion equation
260,998.20 : 391,497.30 = 172,351.80 : x - Step 2: Convert to fraction form
260,998.20/391,497.30 = 172,351.80/x - Step 3: Cross multiply
260,998.20x = 391,497.30 × 172,351.80 - Step 4: Simplify right side
260,998.20x = 67,475,264,350.14 - Step 5: Solve for x
x = 67,475,264,350.14/260,998.20 - Step 6: Final answer
x = 258,527.70
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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.