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Finding the Fourth Proportional to 267.50, 367.84 and 222.65

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Solution

The fourth proportional to 267.50, 367.84 and 222.65 is: 306.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.50 : 367.84 = 222.65 : x
  2. Step 2: Convert to fraction form
    267.50/367.84 = 222.65/x
  3. Step 3: Cross multiply
    267.50x = 367.84 × 222.65
  4. Step 4: Simplify right side
    267.50x = 81,899.39
  5. Step 5: Solve for x
    x = 81,899.39/267.50
  6. Step 6: Final answer
    x = 306.16

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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.