Finding the Fourth Proportional to 457,649.60, 686,400.96 and 125,147.84
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Solution
The fourth proportional to 457,649.60, 686,400.96 and 125,147.84 is: 187,701.68
Step by Step Solution
- Step 1: Write the proportion equation
457,649.60 : 686,400.96 = 125,147.84 : x - Step 2: Convert to fraction form
457,649.60/686,400.96 = 125,147.84/x - Step 3: Cross multiply
457,649.60x = 686,400.96 × 125,147.84 - Step 4: Simplify right side
457,649.60x = 85,901,597,517.93 - Step 5: Solve for x
x = 85,901,597,517.93/457,649.60 - Step 6: Final answer
x = 187,701.68
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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.