Finding the Fourth Proportional to 173.19, 239.01 and 107.75
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Solution
The fourth proportional to 173.19, 239.01 and 107.75 is: 148.70
Step by Step Solution
- Step 1: Write the proportion equation
173.19 : 239.01 = 107.75 : x - Step 2: Convert to fraction form
173.19/239.01 = 107.75/x - Step 3: Cross multiply
173.19x = 239.01 × 107.75 - Step 4: Simplify right side
173.19x = 25,752.79 - Step 5: Solve for x
x = 25,752.79/173.19 - Step 6: Final answer
x = 148.70
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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.