Finding the Fourth Proportional to 173.24, 239.06 and 107.74
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Solution
The fourth proportional to 173.24, 239.06 and 107.74 is: 148.68
Step by Step Solution
- Step 1: Write the proportion equation
173.24 : 239.06 = 107.74 : x - Step 2: Convert to fraction form
173.24/239.06 = 107.74/x - Step 3: Cross multiply
173.24x = 239.06 × 107.74 - Step 4: Simplify right side
173.24x = 25,757.19 - Step 5: Solve for x
x = 25,757.19/173.24 - Step 6: Final answer
x = 148.68
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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.