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Finding the Third Proportional to 220,689 and 476,370

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Solution

The third proportional to 220,689 and 476,370 is: 1,028,272.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,689 : 476,370 = 476,370 : x
  2. Step 2: Convert to fraction form
    220,689/476,370 = 476,370/x
  3. Step 3: Cross multiply
    220,689x = 476,370 × 476,370
  4. Step 4: Simplify right side
    220,689x = 226,928,376,900
  5. Step 5: Solve for x
    x = 226,928,376,900/220,689
  6. Step 6: Final answer
    x = 1,028,272.26

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.