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Finding the Fourth Proportional to 222.39, 306.79 and 183.11

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Solution

The fourth proportional to 222.39, 306.79 and 183.11 is: 252.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.39 : 306.79 = 183.11 : x
  2. Step 2: Convert to fraction form
    222.39/306.79 = 183.11/x
  3. Step 3: Cross multiply
    222.39x = 306.79 × 183.11
  4. Step 4: Simplify right side
    222.39x = 56,174.33
  5. Step 5: Solve for x
    x = 56,174.33/222.39
  6. Step 6: Final answer
    x = 252.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.