Finding the Fourth Proportional to 207,452.20, 311,251.20 and 74,336.80
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Solution
The fourth proportional to 207,452.20, 311,251.20 and 74,336.80 is: 111,531.32
Step by Step Solution
- Step 1: Write the proportion equation
207,452.20 : 311,251.20 = 74,336.80 : x - Step 2: Convert to fraction form
207,452.20/311,251.20 = 74,336.80/x - Step 3: Cross multiply
207,452.20x = 311,251.20 × 74,336.80 - Step 4: Simplify right side
207,452.20x = 23,137,418,204.16 - Step 5: Solve for x
x = 23,137,418,204.16/207,452.20 - Step 6: Final answer
x = 111,531.32
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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.