Finding the Fourth Proportional to 281,873.31, 422,764.96 and 82,146.99
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Solution
The fourth proportional to 281,873.31, 422,764.96 and 82,146.99 is: 123,207.37
Step by Step Solution
- Step 1: Write the proportion equation
281,873.31 : 422,764.96 = 82,146.99 : x - Step 2: Convert to fraction form
281,873.31/422,764.96 = 82,146.99/x - Step 3: Cross multiply
281,873.31x = 422,764.96 × 82,146.99 - Step 4: Simplify right side
281,873.31x = 34,728,868,941.47 - Step 5: Solve for x
x = 34,728,868,941.47/281,873.31 - Step 6: Final answer
x = 123,207.37
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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.