Finding the Fourth Proportional to 281,691.32, 422,552.36 and 71,331.08
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Solution
The fourth proportional to 281,691.32, 422,552.36 and 71,331.08 is: 107,000.51
Step by Step Solution
- Step 1: Write the proportion equation
281,691.32 : 422,552.36 = 71,331.08 : x - Step 2: Convert to fraction form
281,691.32/422,552.36 = 71,331.08/x - Step 3: Cross multiply
281,691.32x = 422,552.36 × 71,331.08 - Step 4: Simplify right side
281,691.32x = 30,141,114,082.59 - Step 5: Solve for x
x = 30,141,114,082.59/281,691.32 - Step 6: Final answer
x = 107,000.51
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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.