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Finding the Fourth Proportional to 327.21, 451.37 and 222.29

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Solution

The fourth proportional to 327.21, 451.37 and 222.29 is: 306.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.21 : 451.37 = 222.29 : x
  2. Step 2: Convert to fraction form
    327.21/451.37 = 222.29/x
  3. Step 3: Cross multiply
    327.21x = 451.37 × 222.29
  4. Step 4: Simplify right side
    327.21x = 100,337.57
  5. Step 5: Solve for x
    x = 100,337.57/327.21
  6. Step 6: Final answer
    x = 306.65

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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.