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Finding the Third Proportional to 71,809 and 153,393

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Solution

The third proportional to 71,809 and 153,393 is: 327,666.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,809 : 153,393 = 153,393 : x
  2. Step 2: Convert to fraction form
    71,809/153,393 = 153,393/x
  3. Step 3: Cross multiply
    71,809x = 153,393 × 153,393
  4. Step 4: Simplify right side
    71,809x = 23,529,412,449
  5. Step 5: Solve for x
    x = 23,529,412,449/71,809
  6. Step 6: Final answer
    x = 327,666.62

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.