Finding the Fourth Proportional to 206,396.12, 284,711.32 and 129,886.66
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Solution
The fourth proportional to 206,396.12, 284,711.32 and 129,886.66 is: 179,171.02
Step by Step Solution
- Step 1: Write the proportion equation
206,396.12 : 284,711.32 = 129,886.66 : x - Step 2: Convert to fraction form
206,396.12/284,711.32 = 129,886.66/x - Step 3: Cross multiply
206,396.12x = 284,711.32 × 129,886.66 - Step 4: Simplify right side
206,396.12x = 36,980,202,937.24 - Step 5: Solve for x
x = 36,980,202,937.24/206,396.12 - Step 6: Final answer
x = 179,171.02
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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.