Finding the Fourth Proportional to 173.28, 239.18 and 115.06
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Solution
The fourth proportional to 173.28, 239.18 and 115.06 is: 158.82
Step by Step Solution
- Step 1: Write the proportion equation
173.28 : 239.18 = 115.06 : x - Step 2: Convert to fraction form
173.28/239.18 = 115.06/x - Step 3: Cross multiply
173.28x = 239.18 × 115.06 - Step 4: Simplify right side
173.28x = 27,520.05 - Step 5: Solve for x
x = 27,520.05/173.28 - Step 6: Final answer
x = 158.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.