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Finding the Fourth Proportional to 226.28, 338.50 and 187.84

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Solution

The fourth proportional to 226.28, 338.50 and 187.84 is: 280.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.28 : 338.50 = 187.84 : x
  2. Step 2: Convert to fraction form
    226.28/338.50 = 187.84/x
  3. Step 3: Cross multiply
    226.28x = 338.50 × 187.84
  4. Step 4: Simplify right side
    226.28x = 63,581.54
  5. Step 5: Solve for x
    x = 63,581.54/226.28
  6. Step 6: Final answer
    x = 280.99

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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.