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Finding the Third Proportional to 222.13 and 455.13

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Solution

The third proportional to 222.13 and 455.13 is: 932.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.13 : 455.13 = 455.13 : x
  2. Step 2: Convert to fraction form
    222.13/455.13 = 455.13/x
  3. Step 3: Cross multiply
    222.13x = 455.13 × 455.13
  4. Step 4: Simplify right side
    222.13x = 207,138.77
  5. Step 5: Solve for x
    x = 207,138.77/222.13
  6. Step 6: Final answer
    x = 932.53

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.