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Finding the Fourth Proportional to 195.08, 269.19 and 112.19

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Solution

The fourth proportional to 195.08, 269.19 and 112.19 is: 154.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.08 : 269.19 = 112.19 : x
  2. Step 2: Convert to fraction form
    195.08/269.19 = 112.19/x
  3. Step 3: Cross multiply
    195.08x = 269.19 × 112.19
  4. Step 4: Simplify right side
    195.08x = 30,200.43
  5. Step 5: Solve for x
    x = 30,200.43/195.08
  6. Step 6: Final answer
    x = 154.81

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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.