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Finding the Fourth Proportional to 267.22, 401.44 and 216.19

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Solution

The fourth proportional to 267.22, 401.44 and 216.19 is: 324.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.22 : 401.44 = 216.19 : x
  2. Step 2: Convert to fraction form
    267.22/401.44 = 216.19/x
  3. Step 3: Cross multiply
    267.22x = 401.44 × 216.19
  4. Step 4: Simplify right side
    267.22x = 86,787.31
  5. Step 5: Solve for x
    x = 86,787.31/267.22
  6. Step 6: Final answer
    x = 324.78

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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.