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Finding the Third Proportional to 111,009 and 239,754

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Solution

The third proportional to 111,009 and 239,754 is: 517,813.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,009 : 239,754 = 239,754 : x
  2. Step 2: Convert to fraction form
    111,009/239,754 = 239,754/x
  3. Step 3: Cross multiply
    111,009x = 239,754 × 239,754
  4. Step 4: Simplify right side
    111,009x = 57,481,980,516
  5. Step 5: Solve for x
    x = 57,481,980,516/111,009
  6. Step 6: Final answer
    x = 517,813.70

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.