Finding the Fourth Proportional to 198,934.18, 274,532.70 and 108,292.75
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Solution
The fourth proportional to 198,934.18, 274,532.70 and 108,292.75 is: 149,445.92
Step by Step Solution
- Step 1: Write the proportion equation
198,934.18 : 274,532.70 = 108,292.75 : x - Step 2: Convert to fraction form
198,934.18/274,532.70 = 108,292.75/x - Step 3: Cross multiply
198,934.18x = 274,532.70 × 108,292.75 - Step 4: Simplify right side
198,934.18x = 29,729,901,047.93 - Step 5: Solve for x
x = 29,729,901,047.93/198,934.18 - Step 6: Final answer
x = 149,445.92
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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.