Finding the Fourth Proportional to 249.11, 343.68 and 161.75
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Solution
The fourth proportional to 249.11, 343.68 and 161.75 is: 223.16
Step by Step Solution
- Step 1: Write the proportion equation
249.11 : 343.68 = 161.75 : x - Step 2: Convert to fraction form
249.11/343.68 = 161.75/x - Step 3: Cross multiply
249.11x = 343.68 × 161.75 - Step 4: Simplify right side
249.11x = 55,590.24 - Step 5: Solve for x
x = 55,590.24/249.11 - Step 6: Final answer
x = 223.16
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.