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Finding the Third Proportional to 108,817 and 239,700

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Solution

The third proportional to 108,817 and 239,700 is: 528,006.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,817 : 239,700 = 239,700 : x
  2. Step 2: Convert to fraction form
    108,817/239,700 = 239,700/x
  3. Step 3: Cross multiply
    108,817x = 239,700 × 239,700
  4. Step 4: Simplify right side
    108,817x = 57,456,090,000
  5. Step 5: Solve for x
    x = 57,456,090,000/108,817
  6. Step 6: Final answer
    x = 528,006.56

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.