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Finding the Fourth Proportional to 195.42, 292.68 and 154.74

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Solution

The fourth proportional to 195.42, 292.68 and 154.74 is: 231.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    195.42 : 292.68 = 154.74 : x
  2. Step 2: Convert to fraction form
    195.42/292.68 = 154.74/x
  3. Step 3: Cross multiply
    195.42x = 292.68 × 154.74
  4. Step 4: Simplify right side
    195.42x = 45,289.30
  5. Step 5: Solve for x
    x = 45,289.30/195.42
  6. Step 6: Final answer
    x = 231.75

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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.