Finding the Fourth Proportional to 252.48, 378.75 and 108.18
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Solution
The fourth proportional to 252.48, 378.75 and 108.18 is: 162.28
Step by Step Solution
- Step 1: Write the proportion equation
252.48 : 378.75 = 108.18 : x - Step 2: Convert to fraction form
252.48/378.75 = 108.18/x - Step 3: Cross multiply
252.48x = 378.75 × 108.18 - Step 4: Simplify right side
252.48x = 40,973.18 - Step 5: Solve for x
x = 40,973.18/252.48 - Step 6: Final answer
x = 162.28
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.