Finding the Fourth Proportional to 173.13, 239.09 and 107.66
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Solution
The fourth proportional to 173.13, 239.09 and 107.66 is: 148.67
Step by Step Solution
- Step 1: Write the proportion equation
173.13 : 239.09 = 107.66 : x - Step 2: Convert to fraction form
173.13/239.09 = 107.66/x - Step 3: Cross multiply
173.13x = 239.09 × 107.66 - Step 4: Simplify right side
173.13x = 25,738.70 - Step 5: Solve for x
x = 25,738.70/173.13 - Step 6: Final answer
x = 148.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.