Finding the Fourth Proportional to 252.68, 379.14 and 115.66
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Solution
The fourth proportional to 252.68, 379.14 and 115.66 is: 173.54
Step by Step Solution
- Step 1: Write the proportion equation
252.68 : 379.14 = 115.66 : x - Step 2: Convert to fraction form
252.68/379.14 = 115.66/x - Step 3: Cross multiply
252.68x = 379.14 × 115.66 - Step 4: Simplify right side
252.68x = 43,849.44 - Step 5: Solve for x
x = 43,849.44/252.68 - Step 6: Final answer
x = 173.54
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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.