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Finding the Third Proportional to 156,983 and 322,234

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Solution

The third proportional to 156,983 and 322,234 is: 661,439.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,983 : 322,234 = 322,234 : x
  2. Step 2: Convert to fraction form
    156,983/322,234 = 322,234/x
  3. Step 3: Cross multiply
    156,983x = 322,234 × 322,234
  4. Step 4: Simplify right side
    156,983x = 103,834,750,756
  5. Step 5: Solve for x
    x = 103,834,750,756/156,983
  6. Step 6: Final answer
    x = 661,439.46

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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.