Finding the Fourth Proportional to 575.12, 861.96 and 344
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Solution
The fourth proportional to 575.12, 861.96 and 344 is: 515.57
Step by Step Solution
- Step 1: Write the proportion equation
575.12 : 861.96 = 344 : x - Step 2: Convert to fraction form
575.12/861.96 = 344/x - Step 3: Cross multiply
575.12x = 861.96 × 344 - Step 4: Simplify right side
575.12x = 296,514.24 - Step 5: Solve for x
x = 296,514.24/575.12 - Step 6: Final answer
x = 515.57
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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.