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Finding the Third Proportional to 140,865.75 and 211,297.50

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Solution

The third proportional to 140,865.75 and 211,297.50 is: 316,944.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,865.75 : 211,297.50 = 211,297.50 : x
  2. Step 2: Convert to fraction form
    140,865.75/211,297.50 = 211,297.50/x
  3. Step 3: Cross multiply
    140,865.75x = 211,297.50 × 211,297.50
  4. Step 4: Simplify right side
    140,865.75x = 44,646,633,506.25
  5. Step 5: Solve for x
    x = 44,646,633,506.25/140,865.75
  6. Step 6: Final answer
    x = 316,944.56

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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.