Finding the Fourth Proportional to 442,178.20, 663,264.60 and 126,635.68
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Solution
The fourth proportional to 442,178.20, 663,264.60 and 126,635.68 is: 189,952.75
Step by Step Solution
- Step 1: Write the proportion equation
442,178.20 : 663,264.60 = 126,635.68 : x - Step 2: Convert to fraction form
442,178.20/663,264.60 = 126,635.68/x - Step 3: Cross multiply
442,178.20x = 663,264.60 × 126,635.68 - Step 4: Simplify right side
442,178.20x = 83,992,963,640.93 - Step 5: Solve for x
x = 83,992,963,640.93/442,178.20 - Step 6: Final answer
x = 189,952.75
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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.