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Finding the Fourth Proportional to 222.66, 333.72 and 92.55

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Solution

The fourth proportional to 222.66, 333.72 and 92.55 is: 138.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.66 : 333.72 = 92.55 : x
  2. Step 2: Convert to fraction form
    222.66/333.72 = 92.55/x
  3. Step 3: Cross multiply
    222.66x = 333.72 × 92.55
  4. Step 4: Simplify right side
    222.66x = 30,885.79
  5. Step 5: Solve for x
    x = 30,885.79/222.66
  6. Step 6: Final answer
    x = 138.71

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.