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Finding the Third Proportional to 70,982 and 155,212

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Solution

The third proportional to 70,982 and 155,212 is: 339,392.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,982 : 155,212 = 155,212 : x
  2. Step 2: Convert to fraction form
    70,982/155,212 = 155,212/x
  3. Step 3: Cross multiply
    70,982x = 155,212 × 155,212
  4. Step 4: Simplify right side
    70,982x = 24,090,764,944
  5. Step 5: Solve for x
    x = 24,090,764,944/70,982
  6. Step 6: Final answer
    x = 339,392.59

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.