Finding the Fourth Proportional to 351,860.76, 527,791.68 and 85,619.70
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Solution
The fourth proportional to 351,860.76, 527,791.68 and 85,619.70 is: 128,429.68
Step by Step Solution
- Step 1: Write the proportion equation
351,860.76 : 527,791.68 = 85,619.70 : x - Step 2: Convert to fraction form
351,860.76/527,791.68 = 85,619.70/x - Step 3: Cross multiply
351,860.76x = 527,791.68 × 85,619.70 - Step 4: Simplify right side
351,860.76x = 45,189,365,304.10 - Step 5: Solve for x
x = 45,189,365,304.10/351,860.76 - Step 6: Final answer
x = 128,429.68
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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.