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Finding the Third Proportional to 256,844.25 and 409,050

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Solution

The third proportional to 256,844.25 and 409,050 is: 651,452.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,844.25 : 409,050 = 409,050 : x
  2. Step 2: Convert to fraction form
    256,844.25/409,050 = 409,050/x
  3. Step 3: Cross multiply
    256,844.25x = 409,050 × 409,050
  4. Step 4: Simplify right side
    256,844.25x = 167,321,902,500
  5. Step 5: Solve for x
    x = 167,321,902,500/256,844.25
  6. Step 6: Final answer
    x = 651,452.79

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.