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Finding the Fourth Proportional to 195.87, 293.72 and 104.55

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Solution

The fourth proportional to 195.87, 293.72 and 104.55 is: 156.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.87 : 293.72 = 104.55 : x
  2. Step 2: Convert to fraction form
    195.87/293.72 = 104.55/x
  3. Step 3: Cross multiply
    195.87x = 293.72 × 104.55
  4. Step 4: Simplify right side
    195.87x = 30,708.69
  5. Step 5: Solve for x
    x = 30,708.69/195.87
  6. Step 6: Final answer
    x = 156.78

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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.