Finding the Fourth Proportional to 281,400.30, 422,122.41 and 81,723.96
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Solution
The fourth proportional to 281,400.30, 422,122.41 and 81,723.96 is: 122,592.32
Step by Step Solution
- Step 1: Write the proportion equation
281,400.30 : 422,122.41 = 81,723.96 : x - Step 2: Convert to fraction form
281,400.30/422,122.41 = 81,723.96/x - Step 3: Cross multiply
281,400.30x = 422,122.41 × 81,723.96 - Step 4: Simplify right side
281,400.30x = 34,497,514,949.94 - Step 5: Solve for x
x = 34,497,514,949.94/281,400.30 - Step 6: Final answer
x = 122,592.32
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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.