Finding the Fourth Proportional to 252.74, 378.97 and 98.71
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Solution
The fourth proportional to 252.74, 378.97 and 98.71 is: 148.01
Step by Step Solution
- Step 1: Write the proportion equation
252.74 : 378.97 = 98.71 : x - Step 2: Convert to fraction form
252.74/378.97 = 98.71/x - Step 3: Cross multiply
252.74x = 378.97 × 98.71 - Step 4: Simplify right side
252.74x = 37,408.13 - Step 5: Solve for x
x = 37,408.13/252.74 - Step 6: Final answer
x = 148.01
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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.