Finding the Fourth Proportional to 318,121.76, 477,170.18 and 107,759.70
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Solution
The fourth proportional to 318,121.76, 477,170.18 and 107,759.70 is: 161,635.33
Step by Step Solution
- Step 1: Write the proportion equation
318,121.76 : 477,170.18 = 107,759.70 : x - Step 2: Convert to fraction form
318,121.76/477,170.18 = 107,759.70/x - Step 3: Cross multiply
318,121.76x = 477,170.18 × 107,759.70 - Step 4: Simplify right side
318,121.76x = 51,419,715,445.75 - Step 5: Solve for x
x = 51,419,715,445.75/318,121.76 - Step 6: Final answer
x = 161,635.33
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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.