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Finding the Fourth Proportional to 494.96, 742.63 and 170.14

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Solution

The fourth proportional to 494.96, 742.63 and 170.14 is: 255.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.96 : 742.63 = 170.14 : x
  2. Step 2: Convert to fraction form
    494.96/742.63 = 170.14/x
  3. Step 3: Cross multiply
    494.96x = 742.63 × 170.14
  4. Step 4: Simplify right side
    494.96x = 126,351.07
  5. Step 5: Solve for x
    x = 126,351.07/494.96
  6. Step 6: Final answer
    x = 255.28

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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.