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Finding the Fourth Proportional to 195.24, 269.43 and 106.72

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Solution

The fourth proportional to 195.24, 269.43 and 106.72 is: 147.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.24 : 269.43 = 106.72 : x
  2. Step 2: Convert to fraction form
    195.24/269.43 = 106.72/x
  3. Step 3: Cross multiply
    195.24x = 269.43 × 106.72
  4. Step 4: Simplify right side
    195.24x = 28,753.57
  5. Step 5: Solve for x
    x = 28,753.57/195.24
  6. Step 6: Final answer
    x = 147.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.