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Finding the Third Proportional to 218,520 and 476,757

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Solution

The third proportional to 218,520 and 476,757 is: 1,040,166.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,520 : 476,757 = 476,757 : x
  2. Step 2: Convert to fraction form
    218,520/476,757 = 476,757/x
  3. Step 3: Cross multiply
    218,520x = 476,757 × 476,757
  4. Step 4: Simplify right side
    218,520x = 227,297,237,049
  5. Step 5: Solve for x
    x = 227,297,237,049/218,520
  6. Step 6: Final answer
    x = 1,040,166.74

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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.