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Finding the Fourth Proportional to 226.22, 338.85 and 144.81

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Solution

The fourth proportional to 226.22, 338.85 and 144.81 is: 216.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.22 : 338.85 = 144.81 : x
  2. Step 2: Convert to fraction form
    226.22/338.85 = 144.81/x
  3. Step 3: Cross multiply
    226.22x = 338.85 × 144.81
  4. Step 4: Simplify right side
    226.22x = 49,068.87
  5. Step 5: Solve for x
    x = 49,068.87/226.22
  6. Step 6: Final answer
    x = 216.91

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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.