Finding the Fourth Proportional to 508,820.40, 763,251.35 and 129,750.96
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Solution
The fourth proportional to 508,820.40, 763,251.35 and 129,750.96 is: 194,631.73
Step by Step Solution
- Step 1: Write the proportion equation
508,820.40 : 763,251.35 = 129,750.96 : x - Step 2: Convert to fraction form
508,820.40/763,251.35 = 129,750.96/x - Step 3: Cross multiply
508,820.40x = 763,251.35 × 129,750.96 - Step 4: Simplify right side
508,820.40x = 99,032,594,735.04 - Step 5: Solve for x
x = 99,032,594,735.04/508,820.40 - Step 6: Final answer
x = 194,631.73
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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.