Finding the Fourth Proportional to 252.96, 379.26 and 122.91
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Solution
The fourth proportional to 252.96, 379.26 and 122.91 is: 184.28
Step by Step Solution
- Step 1: Write the proportion equation
252.96 : 379.26 = 122.91 : x - Step 2: Convert to fraction form
252.96/379.26 = 122.91/x - Step 3: Cross multiply
252.96x = 379.26 × 122.91 - Step 4: Simplify right side
252.96x = 46,614.85 - Step 5: Solve for x
x = 46,614.85/252.96 - Step 6: Final answer
x = 184.28
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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.