Finding the Fourth Proportional to 486,306.20, 729,113.70 and 220,194.20
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Solution
The fourth proportional to 486,306.20, 729,113.70 and 220,194.20 is: 330,134.82
Step by Step Solution
- Step 1: Write the proportion equation
486,306.20 : 729,113.70 = 220,194.20 : x - Step 2: Convert to fraction form
486,306.20/729,113.70 = 220,194.20/x - Step 3: Cross multiply
486,306.20x = 729,113.70 × 220,194.20 - Step 4: Simplify right side
486,306.20x = 160,546,607,880.54 - Step 5: Solve for x
x = 160,546,607,880.54/486,306.20 - Step 6: Final answer
x = 330,134.82
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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.