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Finding the Fourth Proportional to 195.76, 270.24 and 149.14

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Solution

The fourth proportional to 195.76, 270.24 and 149.14 is: 205.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.76 : 270.24 = 149.14 : x
  2. Step 2: Convert to fraction form
    195.76/270.24 = 149.14/x
  3. Step 3: Cross multiply
    195.76x = 270.24 × 149.14
  4. Step 4: Simplify right side
    195.76x = 40,303.59
  5. Step 5: Solve for x
    x = 40,303.59/195.76
  6. Step 6: Final answer
    x = 205.88

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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.