Finding the Fourth Proportional to 398,272.74, 597,279.92 and 131,961.75
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Solution
The fourth proportional to 398,272.74, 597,279.92 and 131,961.75 is: 197,899.82
Step by Step Solution
- Step 1: Write the proportion equation
398,272.74 : 597,279.92 = 131,961.75 : x - Step 2: Convert to fraction form
398,272.74/597,279.92 = 131,961.75/x - Step 3: Cross multiply
398,272.74x = 597,279.92 × 131,961.75 - Step 4: Simplify right side
398,272.74x = 78,818,102,823.25 - Step 5: Solve for x
x = 78,818,102,823.25/398,272.74 - Step 6: Final answer
x = 197,899.82
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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.