Finding the Fourth Proportional to 252,286.28, 378,502.50 and 74,796.68
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Solution
The fourth proportional to 252,286.28, 378,502.50 and 74,796.68 is: 112,216.69
Step by Step Solution
- Step 1: Write the proportion equation
252,286.28 : 378,502.50 = 74,796.68 : x - Step 2: Convert to fraction form
252,286.28/378,502.50 = 74,796.68/x - Step 3: Cross multiply
252,286.28x = 378,502.50 × 74,796.68 - Step 4: Simplify right side
252,286.28x = 28,310,730,371.70 - Step 5: Solve for x
x = 28,310,730,371.70/252,286.28 - Step 6: Final answer
x = 112,216.69
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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.