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Finding the Fourth Proportional to 119.42, 179.14 and 38.27

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Solution

The fourth proportional to 119.42, 179.14 and 38.27 is: 57.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119.42 : 179.14 = 38.27 : x
  2. Step 2: Convert to fraction form
    119.42/179.14 = 38.27/x
  3. Step 3: Cross multiply
    119.42x = 179.14 × 38.27
  4. Step 4: Simplify right side
    119.42x = 6,855.21
  5. Step 5: Solve for x
    x = 6,855.21/119.42
  6. Step 6: Final answer
    x = 57.40

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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.