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Finding the Third Proportional to 222,728 and 485,655

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Solution

The third proportional to 222,728 and 485,655 is: 1,058,963.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,728 : 485,655 = 485,655 : x
  2. Step 2: Convert to fraction form
    222,728/485,655 = 485,655/x
  3. Step 3: Cross multiply
    222,728x = 485,655 × 485,655
  4. Step 4: Simplify right side
    222,728x = 235,860,779,025
  5. Step 5: Solve for x
    x = 235,860,779,025/222,728
  6. Step 6: Final answer
    x = 1,058,963.31

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.