Finding the Fourth Proportional to 198,027.20, 273,252.36 and 113,149.76
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Solution
The fourth proportional to 198,027.20, 273,252.36 and 113,149.76 is: 156,132.28
Step by Step Solution
- Step 1: Write the proportion equation
198,027.20 : 273,252.36 = 113,149.76 : x - Step 2: Convert to fraction form
198,027.20/273,252.36 = 113,149.76/x - Step 3: Cross multiply
198,027.20x = 273,252.36 × 113,149.76 - Step 4: Simplify right side
198,027.20x = 30,918,438,953.43 - Step 5: Solve for x
x = 30,918,438,953.43/198,027.20 - Step 6: Final answer
x = 156,132.28
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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.