Finding the Fourth Proportional to 252.97, 379.09 and 115.77
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Solution
The fourth proportional to 252.97, 379.09 and 115.77 is: 173.49
Step by Step Solution
- Step 1: Write the proportion equation
252.97 : 379.09 = 115.77 : x - Step 2: Convert to fraction form
252.97/379.09 = 115.77/x - Step 3: Cross multiply
252.97x = 379.09 × 115.77 - Step 4: Simplify right side
252.97x = 43,887.25 - Step 5: Solve for x
x = 43,887.25/252.97 - Step 6: Final answer
x = 173.49
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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.