Finding the Fourth Proportional to 305,126.24, 457,720.12 and 80,502.20
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Solution
The fourth proportional to 305,126.24, 457,720.12 and 80,502.20 is: 120,761.42
Step by Step Solution
- Step 1: Write the proportion equation
305,126.24 : 457,720.12 = 80,502.20 : x - Step 2: Convert to fraction form
305,126.24/457,720.12 = 80,502.20/x - Step 3: Cross multiply
305,126.24x = 457,720.12 × 80,502.20 - Step 4: Simplify right side
305,126.24x = 36,847,476,644.26 - Step 5: Solve for x
x = 36,847,476,644.26/305,126.24 - Step 6: Final answer
x = 120,761.42
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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.