Finding the Fourth Proportional to 252.70, 379.11 and 98.63
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Solution
The fourth proportional to 252.70, 379.11 and 98.63 is: 147.97
Step by Step Solution
- Step 1: Write the proportion equation
252.70 : 379.11 = 98.63 : x - Step 2: Convert to fraction form
252.70/379.11 = 98.63/x - Step 3: Cross multiply
252.70x = 379.11 × 98.63 - Step 4: Simplify right side
252.70x = 37,391.62 - Step 5: Solve for x
x = 37,391.62/252.70 - Step 6: Final answer
x = 147.97
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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.