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Finding the Third Proportional to 220,276 and 340,806

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Solution

The third proportional to 220,276 and 340,806 is: 527,287.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,276 : 340,806 = 340,806 : x
  2. Step 2: Convert to fraction form
    220,276/340,806 = 340,806/x
  3. Step 3: Cross multiply
    220,276x = 340,806 × 340,806
  4. Step 4: Simplify right side
    220,276x = 116,148,729,636
  5. Step 5: Solve for x
    x = 116,148,729,636/220,276
  6. Step 6: Final answer
    x = 527,287.27

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.