Finding the Fourth Proportional to 171.28, 257.02 and 63.14
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Solution
The fourth proportional to 171.28, 257.02 and 63.14 is: 94.75
Step by Step Solution
- Step 1: Write the proportion equation
171.28 : 257.02 = 63.14 : x - Step 2: Convert to fraction form
171.28/257.02 = 63.14/x - Step 3: Cross multiply
171.28x = 257.02 × 63.14 - Step 4: Simplify right side
171.28x = 16,228.24 - Step 5: Solve for x
x = 16,228.24/171.28 - Step 6: Final answer
x = 94.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.