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Finding the Third Proportional to 115,456 and 239,984

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Solution

The third proportional to 115,456 and 239,984 is: 498,824.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,456 : 239,984 = 239,984 : x
  2. Step 2: Convert to fraction form
    115,456/239,984 = 239,984/x
  3. Step 3: Cross multiply
    115,456x = 239,984 × 239,984
  4. Step 4: Simplify right side
    115,456x = 57,592,320,256
  5. Step 5: Solve for x
    x = 57,592,320,256/115,456
  6. Step 6: Final answer
    x = 498,824.84

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.