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Finding the Third Proportional to 238,860 and 513,108

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Solution

The third proportional to 238,860 and 513,108 is: 1,102,234.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,860 : 513,108 = 513,108 : x
  2. Step 2: Convert to fraction form
    238,860/513,108 = 513,108/x
  3. Step 3: Cross multiply
    238,860x = 513,108 × 513,108
  4. Step 4: Simplify right side
    238,860x = 263,279,819,664
  5. Step 5: Solve for x
    x = 263,279,819,664/238,860
  6. Step 6: Final answer
    x = 1,102,234.86

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.