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Finding the Third Proportional to 141,021.75 and 218,463.75

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Solution

The third proportional to 141,021.75 and 218,463.75 is: 338,432.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,021.75 : 218,463.75 = 218,463.75 : x
  2. Step 2: Convert to fraction form
    141,021.75/218,463.75 = 218,463.75/x
  3. Step 3: Cross multiply
    141,021.75x = 218,463.75 × 218,463.75
  4. Step 4: Simplify right side
    141,021.75x = 47,726,410,064.06
  5. Step 5: Solve for x
    x = 47,726,410,064.06/141,021.75
  6. Step 6: Final answer
    x = 338,432.97

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.