Finding the Fourth Proportional to 457,229.55, 686,286.99 and 220,738.17
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Solution
The fourth proportional to 457,229.55, 686,286.99 and 220,738.17 is: 331,320.96
Step by Step Solution
- Step 1: Write the proportion equation
457,229.55 : 686,286.99 = 220,738.17 : x - Step 2: Convert to fraction form
457,229.55/686,286.99 = 220,738.17/x - Step 3: Cross multiply
457,229.55x = 686,286.99 × 220,738.17 - Step 4: Simplify right side
457,229.55x = 151,489,734,267.41 - Step 5: Solve for x
x = 151,489,734,267.41/457,229.55 - Step 6: Final answer
x = 331,320.96
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1.5x scale
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.