Finding the Fourth Proportional to 252.97, 379.09 and 198.97
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Solution
The fourth proportional to 252.97, 379.09 and 198.97 is: 298.17
Step by Step Solution
- Step 1: Write the proportion equation
252.97 : 379.09 = 198.97 : x - Step 2: Convert to fraction form
252.97/379.09 = 198.97/x - Step 3: Cross multiply
252.97x = 379.09 × 198.97 - Step 4: Simplify right side
252.97x = 75,427.54 - Step 5: Solve for x
x = 75,427.54/252.97 - Step 6: Final answer
x = 298.17
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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.