Finding the Fourth Proportional to 542.43, 812.97 and 249.75
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Solution
The fourth proportional to 542.43, 812.97 and 249.75 is: 374.31
Step by Step Solution
- Step 1: Write the proportion equation
542.43 : 812.97 = 249.75 : x - Step 2: Convert to fraction form
542.43/812.97 = 249.75/x - Step 3: Cross multiply
542.43x = 812.97 × 249.75 - Step 4: Simplify right side
542.43x = 203,039.26 - Step 5: Solve for x
x = 203,039.26/542.43 - Step 6: Final answer
x = 374.31
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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.