Finding the Fourth Proportional to 454,446.20, 681,701.70 and 138,902.60
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Solution
The fourth proportional to 454,446.20, 681,701.70 and 138,902.60 is: 208,363.80
Step by Step Solution
- Step 1: Write the proportion equation
454,446.20 : 681,701.70 = 138,902.60 : x - Step 2: Convert to fraction form
454,446.20/681,701.70 = 138,902.60/x - Step 3: Cross multiply
454,446.20x = 681,701.70 × 138,902.60 - Step 4: Simplify right side
454,446.20x = 94,690,138,554.42 - Step 5: Solve for x
x = 94,690,138,554.42/454,446.20 - Step 6: Final answer
x = 208,363.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.