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Finding the Fourth Proportional to 222.07, 306.33 and 134.75

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Solution

The fourth proportional to 222.07, 306.33 and 134.75 is: 185.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.07 : 306.33 = 134.75 : x
  2. Step 2: Convert to fraction form
    222.07/306.33 = 134.75/x
  3. Step 3: Cross multiply
    222.07x = 306.33 × 134.75
  4. Step 4: Simplify right side
    222.07x = 41,276.44
  5. Step 5: Solve for x
    x = 41,276.44/222.07
  6. Step 6: Final answer
    x = 185.88

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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.