Finding the Fourth Proportional to 198,402.30, 273,797.15 and 107,759.12
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Solution
The fourth proportional to 198,402.30, 273,797.15 and 107,759.12 is: 148,708.65
Step by Step Solution
- Step 1: Write the proportion equation
198,402.30 : 273,797.15 = 107,759.12 : x - Step 2: Convert to fraction form
198,402.30/273,797.15 = 107,759.12/x - Step 3: Cross multiply
198,402.30x = 273,797.15 × 107,759.12 - Step 4: Simplify right side
198,402.30x = 29,504,138,034.73 - Step 5: Solve for x
x = 29,504,138,034.73/198,402.30 - Step 6: Final answer
x = 148,708.65
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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.