Finding the Fourth Proportional to 198,697.62, 274,201.47 and 112,672.92
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Solution
The fourth proportional to 198,697.62, 274,201.47 and 112,672.92 is: 155,487.92
Step by Step Solution
- Step 1: Write the proportion equation
198,697.62 : 274,201.47 = 112,672.92 : x - Step 2: Convert to fraction form
198,697.62/274,201.47 = 112,672.92/x - Step 3: Cross multiply
198,697.62x = 274,201.47 × 112,672.92 - Step 4: Simplify right side
198,697.62x = 30,895,080,293.19 - Step 5: Solve for x
x = 30,895,080,293.19/198,697.62 - Step 6: Final answer
x = 155,487.92
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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.