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Finding the Third Proportional to 109,515 and 237,620

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Solution

The third proportional to 109,515 and 237,620 is: 515,575.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,515 : 237,620 = 237,620 : x
  2. Step 2: Convert to fraction form
    109,515/237,620 = 237,620/x
  3. Step 3: Cross multiply
    109,515x = 237,620 × 237,620
  4. Step 4: Simplify right side
    109,515x = 56,463,264,400
  5. Step 5: Solve for x
    x = 56,463,264,400/109,515
  6. Step 6: Final answer
    x = 515,575.62

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.