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Finding the Fourth Proportional to 195.11, 292.78 and 169.39

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Solution

The fourth proportional to 195.11, 292.78 and 169.39 is: 254.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.11 : 292.78 = 169.39 : x
  2. Step 2: Convert to fraction form
    195.11/292.78 = 169.39/x
  3. Step 3: Cross multiply
    195.11x = 292.78 × 169.39
  4. Step 4: Simplify right side
    195.11x = 49,592.54
  5. Step 5: Solve for x
    x = 49,592.54/195.11
  6. Step 6: Final answer
    x = 254.18

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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.