Finding the Fourth Proportional to 252.44, 378.68 and 98.43
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Solution
The fourth proportional to 252.44, 378.68 and 98.43 is: 147.65
Step by Step Solution
- Step 1: Write the proportion equation
252.44 : 378.68 = 98.43 : x - Step 2: Convert to fraction form
252.44/378.68 = 98.43/x - Step 3: Cross multiply
252.44x = 378.68 × 98.43 - Step 4: Simplify right side
252.44x = 37,273.47 - Step 5: Solve for x
x = 37,273.47/252.44 - Step 6: Final answer
x = 147.65
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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.