Finding the Fourth Proportional to 198,098.20, 273,394.18 and 113,198.76
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Solution
The fourth proportional to 198,098.20, 273,394.18 and 113,198.76 is: 156,224.95
Step by Step Solution
- Step 1: Write the proportion equation
198,098.20 : 273,394.18 = 113,198.76 : x - Step 2: Convert to fraction form
198,098.20/273,394.18 = 113,198.76/x - Step 3: Cross multiply
198,098.20x = 273,394.18 × 113,198.76 - Step 4: Simplify right side
198,098.20x = 30,947,882,167.22 - Step 5: Solve for x
x = 30,947,882,167.22/198,098.20 - Step 6: Final answer
x = 156,224.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.