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Finding the Third Proportional to 131,430.38 and 205,905.38

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Solution

The third proportional to 131,430.38 and 205,905.38 is: 322,581.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,430.38 : 205,905.38 = 205,905.38 : x
  2. Step 2: Convert to fraction form
    131,430.38/205,905.38 = 205,905.38/x
  3. Step 3: Cross multiply
    131,430.38x = 205,905.38 × 205,905.38
  4. Step 4: Simplify right side
    131,430.38x = 42,397,023,453.89
  5. Step 5: Solve for x
    x = 42,397,023,453.89/131,430.38
  6. Step 6: Final answer
    x = 322,581.62

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.