Finding the Fourth Proportional to 252.22, 378.36 and 107.92
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Solution
The fourth proportional to 252.22, 378.36 and 107.92 is: 161.89
Step by Step Solution
- Step 1: Write the proportion equation
252.22 : 378.36 = 107.92 : x - Step 2: Convert to fraction form
252.22/378.36 = 107.92/x - Step 3: Cross multiply
252.22x = 378.36 × 107.92 - Step 4: Simplify right side
252.22x = 40,832.61 - Step 5: Solve for x
x = 40,832.61/252.22 - Step 6: Final answer
x = 161.89
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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.