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Finding the Third Proportional to 4,218 and 10,149

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Solution

The third proportional to 4,218 and 10,149 is: 24,419.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218 : 10,149 = 10,149 : x
  2. Step 2: Convert to fraction form
    4,218/10,149 = 10,149/x
  3. Step 3: Cross multiply
    4,218x = 10,149 × 10,149
  4. Step 4: Simplify right side
    4,218x = 103,002,201
  5. Step 5: Solve for x
    x = 103,002,201/4,218
  6. Step 6: Final answer
    x = 24,419.68

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.