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Finding the Third Proportional to 221,395 and 458,543

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Solution

The third proportional to 221,395 and 458,543 is: 949,712.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,395 : 458,543 = 458,543 : x
  2. Step 2: Convert to fraction form
    221,395/458,543 = 458,543/x
  3. Step 3: Cross multiply
    221,395x = 458,543 × 458,543
  4. Step 4: Simplify right side
    221,395x = 210,261,682,849
  5. Step 5: Solve for x
    x = 210,261,682,849/221,395
  6. Step 6: Final answer
    x = 949,712.88

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.