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Finding the Third Proportional to 147,429 and 220,910

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Solution

The third proportional to 147,429 and 220,910 is: 331,015.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,429 : 220,910 = 220,910 : x
  2. Step 2: Convert to fraction form
    147,429/220,910 = 220,910/x
  3. Step 3: Cross multiply
    147,429x = 220,910 × 220,910
  4. Step 4: Simplify right side
    147,429x = 48,801,228,100
  5. Step 5: Solve for x
    x = 48,801,228,100/147,429
  6. Step 6: Final answer
    x = 331,015.12

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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.