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Finding the Third Proportional to 116,988 and 239,519

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Solution

The third proportional to 116,988 and 239,519 is: 490,386.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,988 : 239,519 = 239,519 : x
  2. Step 2: Convert to fraction form
    116,988/239,519 = 239,519/x
  3. Step 3: Cross multiply
    116,988x = 239,519 × 239,519
  4. Step 4: Simplify right side
    116,988x = 57,369,351,361
  5. Step 5: Solve for x
    x = 57,369,351,361/116,988
  6. Step 6: Final answer
    x = 490,386.63

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.