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Finding the Third Proportional to 226.13 and 429.38

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Solution

The third proportional to 226.13 and 429.38 is: 815.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.13 : 429.38 = 429.38 : x
  2. Step 2: Convert to fraction form
    226.13/429.38 = 429.38/x
  3. Step 3: Cross multiply
    226.13x = 429.38 × 429.38
  4. Step 4: Simplify right side
    226.13x = 184,362.89
  5. Step 5: Solve for x
    x = 184,362.89/226.13
  6. Step 6: Final answer
    x = 815.31

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.