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Finding the Third Proportional to 132,785 and 203,217.50

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Solution

The third proportional to 132,785 and 203,217.50 is: 311,009.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,785 : 203,217.50 = 203,217.50 : x
  2. Step 2: Convert to fraction form
    132,785/203,217.50 = 203,217.50/x
  3. Step 3: Cross multiply
    132,785x = 203,217.50 × 203,217.50
  4. Step 4: Simplify right side
    132,785x = 41,297,352,306.25
  5. Step 5: Solve for x
    x = 41,297,352,306.25/132,785
  6. Step 6: Final answer
    x = 311,009.17

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.