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Finding the Third Proportional to 87,604 and 189,320

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Solution

The third proportional to 87,604 and 189,320 is: 409,137.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,604 : 189,320 = 189,320 : x
  2. Step 2: Convert to fraction form
    87,604/189,320 = 189,320/x
  3. Step 3: Cross multiply
    87,604x = 189,320 × 189,320
  4. Step 4: Simplify right side
    87,604x = 35,842,062,400
  5. Step 5: Solve for x
    x = 35,842,062,400/87,604
  6. Step 6: Final answer
    x = 409,137.28

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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.