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Finding the Third Proportional to 153,909 and 335,561

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Solution

The third proportional to 153,909 and 335,561 is: 731,608.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,909 : 335,561 = 335,561 : x
  2. Step 2: Convert to fraction form
    153,909/335,561 = 335,561/x
  3. Step 3: Cross multiply
    153,909x = 335,561 × 335,561
  4. Step 4: Simplify right side
    153,909x = 112,601,184,721
  5. Step 5: Solve for x
    x = 112,601,184,721/153,909
  6. Step 6: Final answer
    x = 731,608.84

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.