Finding the Fourth Proportional to 422,132.20, 582,542.18 and 252,365.80
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Solution
The fourth proportional to 422,132.20, 582,542.18 and 252,365.80 is: 348,264.65
Step by Step Solution
- Step 1: Write the proportion equation
422,132.20 : 582,542.18 = 252,365.80 : x - Step 2: Convert to fraction form
422,132.20/582,542.18 = 252,365.80/x - Step 3: Cross multiply
422,132.20x = 582,542.18 × 252,365.80 - Step 4: Simplify right side
422,132.20x = 147,013,723,289.44 - Step 5: Solve for x
x = 147,013,723,289.44/422,132.20 - Step 6: Final answer
x = 348,264.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.