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Finding the Third Proportional to 215,661 and 465,018

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Solution

The third proportional to 215,661 and 465,018 is: 1,002,692.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,661 : 465,018 = 465,018 : x
  2. Step 2: Convert to fraction form
    215,661/465,018 = 465,018/x
  3. Step 3: Cross multiply
    215,661x = 465,018 × 465,018
  4. Step 4: Simplify right side
    215,661x = 216,241,740,324
  5. Step 5: Solve for x
    x = 216,241,740,324/215,661
  6. Step 6: Final answer
    x = 1,002,692.84

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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.