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Finding the Third Proportional to 131,853 and 209,637

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Solution

The third proportional to 131,853 and 209,637 is: 333,308.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,853 : 209,637 = 209,637 : x
  2. Step 2: Convert to fraction form
    131,853/209,637 = 209,637/x
  3. Step 3: Cross multiply
    131,853x = 209,637 × 209,637
  4. Step 4: Simplify right side
    131,853x = 43,947,671,769
  5. Step 5: Solve for x
    x = 43,947,671,769/131,853
  6. Step 6: Final answer
    x = 333,308.09

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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.