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Finding the Third Proportional to 220,712 and 481,520

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Solution

The third proportional to 220,712 and 481,520 is: 1,050,516.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,712 : 481,520 = 481,520 : x
  2. Step 2: Convert to fraction form
    220,712/481,520 = 481,520/x
  3. Step 3: Cross multiply
    220,712x = 481,520 × 481,520
  4. Step 4: Simplify right side
    220,712x = 231,861,510,400
  5. Step 5: Solve for x
    x = 231,861,510,400/220,712
  6. Step 6: Final answer
    x = 1,050,516.10

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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.