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Finding the Third Proportional to 222.12 and 327.48

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Solution

The third proportional to 222.12 and 327.48 is: 482.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.12 : 327.48 = 327.48 : x
  2. Step 2: Convert to fraction form
    222.12/327.48 = 327.48/x
  3. Step 3: Cross multiply
    222.12x = 327.48 × 327.48
  4. Step 4: Simplify right side
    222.12x = 107,243.46
  5. Step 5: Solve for x
    x = 107,243.46/222.12
  6. Step 6: Final answer
    x = 482.82

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.