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Finding the Third Proportional to 266,749.50 and 409,005

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Solution

The third proportional to 266,749.50 and 409,005 is: 627,124.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,749.50 : 409,005 = 409,005 : x
  2. Step 2: Convert to fraction form
    266,749.50/409,005 = 409,005/x
  3. Step 3: Cross multiply
    266,749.50x = 409,005 × 409,005
  4. Step 4: Simplify right side
    266,749.50x = 167,285,090,025
  5. Step 5: Solve for x
    x = 167,285,090,025/266,749.50
  6. Step 6: Final answer
    x = 627,124.29

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.