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Finding the Fourth Proportional to 171.56, 255.88 and 162.44

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Solution

The fourth proportional to 171.56, 255.88 and 162.44 is: 242.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.56 : 255.88 = 162.44 : x
  2. Step 2: Convert to fraction form
    171.56/255.88 = 162.44/x
  3. Step 3: Cross multiply
    171.56x = 255.88 × 162.44
  4. Step 4: Simplify right side
    171.56x = 41,565.15
  5. Step 5: Solve for x
    x = 41,565.15/171.56
  6. Step 6: Final answer
    x = 242.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.