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Finding the Third Proportional to 140,044.50 and 215,257.50

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Solution

The third proportional to 140,044.50 and 215,257.50 is: 330,864.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,044.50 : 215,257.50 = 215,257.50 : x
  2. Step 2: Convert to fraction form
    140,044.50/215,257.50 = 215,257.50/x
  3. Step 3: Cross multiply
    140,044.50x = 215,257.50 × 215,257.50
  4. Step 4: Simplify right side
    140,044.50x = 46,335,791,306.25
  5. Step 5: Solve for x
    x = 46,335,791,306.25/140,044.50
  6. Step 6: Final answer
    x = 330,864.77

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.