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Finding the Fourth Proportional to 294.28, 440.92 and 178.75

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Solution

The fourth proportional to 294.28, 440.92 and 178.75 is: 267.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.28 : 440.92 = 178.75 : x
  2. Step 2: Convert to fraction form
    294.28/440.92 = 178.75/x
  3. Step 3: Cross multiply
    294.28x = 440.92 × 178.75
  4. Step 4: Simplify right side
    294.28x = 78,815.22
  5. Step 5: Solve for x
    x = 78,815.22/294.28
  6. Step 6: Final answer
    x = 267.83

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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.