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Finding the Fourth Proportional to 195.03, 269.12 and 107.70

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Solution

The fourth proportional to 195.03, 269.12 and 107.70 is: 148.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.03 : 269.12 = 107.70 : x
  2. Step 2: Convert to fraction form
    195.03/269.12 = 107.70/x
  3. Step 3: Cross multiply
    195.03x = 269.12 × 107.70
  4. Step 4: Simplify right side
    195.03x = 28,982.88
  5. Step 5: Solve for x
    x = 28,982.88/195.03
  6. Step 6: Final answer
    x = 148.61

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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.