Finding the Fourth Proportional to 332,221.20, 498,331.80 and 121,831.80
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Solution
The fourth proportional to 332,221.20, 498,331.80 and 121,831.80 is: 182,747.70
Step by Step Solution
- Step 1: Write the proportion equation
332,221.20 : 498,331.80 = 121,831.80 : x - Step 2: Convert to fraction form
332,221.20/498,331.80 = 121,831.80/x - Step 3: Cross multiply
332,221.20x = 498,331.80 × 121,831.80 - Step 4: Simplify right side
332,221.20x = 60,712,660,191.24 - Step 5: Solve for x
x = 60,712,660,191.24/332,221.20 - Step 6: Final answer
x = 182,747.70
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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.