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Finding the Third Proportional to 116,979.75 and 239,490.56

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Solution

The third proportional to 116,979.75 and 239,490.56 is: 490,304.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,979.75 : 239,490.56 = 239,490.56 : x
  2. Step 2: Convert to fraction form
    116,979.75/239,490.56 = 239,490.56/x
  3. Step 3: Cross multiply
    116,979.75x = 239,490.56 × 239,490.56
  4. Step 4: Simplify right side
    116,979.75x = 57,355,729,526.57
  5. Step 5: Solve for x
    x = 57,355,729,526.57/116,979.75
  6. Step 6: Final answer
    x = 490,304.77

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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.