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Finding the Third Proportional to 306,067 and 430,249

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Solution

The third proportional to 306,067 and 430,249 is: 604,815.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,067 : 430,249 = 430,249 : x
  2. Step 2: Convert to fraction form
    306,067/430,249 = 430,249/x
  3. Step 3: Cross multiply
    306,067x = 430,249 × 430,249
  4. Step 4: Simplify right side
    306,067x = 185,114,202,001
  5. Step 5: Solve for x
    x = 185,114,202,001/306,067
  6. Step 6: Final answer
    x = 604,815.95

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.