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Finding the Fourth Proportional to 222.11, 333.27 and 149.81

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Solution

The fourth proportional to 222.11, 333.27 and 149.81 is: 224.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.11 : 333.27 = 149.81 : x
  2. Step 2: Convert to fraction form
    222.11/333.27 = 149.81/x
  3. Step 3: Cross multiply
    222.11x = 333.27 × 149.81
  4. Step 4: Simplify right side
    222.11x = 49,928.01
  5. Step 5: Solve for x
    x = 49,928.01/222.11
  6. Step 6: Final answer
    x = 224.79

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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.