Finding the Fourth Proportional to 387,121.19, 580,445.87 and 173,847.65
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Solution
The fourth proportional to 387,121.19, 580,445.87 and 173,847.65 is: 260,665.52
Step by Step Solution
- Step 1: Write the proportion equation
387,121.19 : 580,445.87 = 173,847.65 : x - Step 2: Convert to fraction form
387,121.19/580,445.87 = 173,847.65/x - Step 3: Cross multiply
387,121.19x = 580,445.87 × 173,847.65 - Step 4: Simplify right side
387,121.19x = 100,909,146,680.24 - Step 5: Solve for x
x = 100,909,146,680.24/387,121.19 - Step 6: Final answer
x = 260,665.52
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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.