Finding the Fourth Proportional to 115.97, 173.94 and 38.99
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Solution
The fourth proportional to 115.97, 173.94 and 38.99 is: 58.48
Step by Step Solution
- Step 1: Write the proportion equation
115.97 : 173.94 = 38.99 : x - Step 2: Convert to fraction form
115.97/173.94 = 38.99/x - Step 3: Cross multiply
115.97x = 173.94 × 38.99 - Step 4: Simplify right side
115.97x = 6,781.92 - Step 5: Solve for x
x = 6,781.92/115.97 - Step 6: Final answer
x = 58.48
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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.