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Finding the Third Proportional to 130,976 and 285,936

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Solution

The third proportional to 130,976 and 285,936 is: 624,231.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,976 : 285,936 = 285,936 : x
  2. Step 2: Convert to fraction form
    130,976/285,936 = 285,936/x
  3. Step 3: Cross multiply
    130,976x = 285,936 × 285,936
  4. Step 4: Simplify right side
    130,976x = 81,759,396,096
  5. Step 5: Solve for x
    x = 81,759,396,096/130,976
  6. Step 6: Final answer
    x = 624,231.89

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.