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Finding the Third Proportional to 150,814 and 331,515

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Solution

The third proportional to 150,814 and 331,515 is: 728,726.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,814 : 331,515 = 331,515 : x
  2. Step 2: Convert to fraction form
    150,814/331,515 = 331,515/x
  3. Step 3: Cross multiply
    150,814x = 331,515 × 331,515
  4. Step 4: Simplify right side
    150,814x = 109,902,195,225
  5. Step 5: Solve for x
    x = 109,902,195,225/150,814
  6. Step 6: Final answer
    x = 728,726.74

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.