Finding the Fourth Proportional to 171.97, 257.99 and 63.76
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Solution
The fourth proportional to 171.97, 257.99 and 63.76 is: 95.65
Step by Step Solution
- Step 1: Write the proportion equation
171.97 : 257.99 = 63.76 : x - Step 2: Convert to fraction form
171.97/257.99 = 63.76/x - Step 3: Cross multiply
171.97x = 257.99 × 63.76 - Step 4: Simplify right side
171.97x = 16,449.44 - Step 5: Solve for x
x = 16,449.44/171.97 - Step 6: Final answer
x = 95.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.