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Finding the Third Proportional to 145,849 and 218,777

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Solution

The third proportional to 145,849 and 218,777 is: 328,170.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,849 : 218,777 = 218,777 : x
  2. Step 2: Convert to fraction form
    145,849/218,777 = 218,777/x
  3. Step 3: Cross multiply
    145,849x = 218,777 × 218,777
  4. Step 4: Simplify right side
    145,849x = 47,863,375,729
  5. Step 5: Solve for x
    x = 47,863,375,729/145,849
  6. Step 6: Final answer
    x = 328,170.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.