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Finding the Fourth Proportional to 195.12, 292.48 and 92.39

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Solution

The fourth proportional to 195.12, 292.48 and 92.39 is: 138.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.12 : 292.48 = 92.39 : x
  2. Step 2: Convert to fraction form
    195.12/292.48 = 92.39/x
  3. Step 3: Cross multiply
    195.12x = 292.48 × 92.39
  4. Step 4: Simplify right side
    195.12x = 27,020.53
  5. Step 5: Solve for x
    x = 27,020.53/195.12
  6. Step 6: Final answer
    x = 138.48

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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.