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Finding the Third Proportional to 86,508 and 187,704

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Solution

The third proportional to 86,508 and 187,704 is: 407,277.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,508 : 187,704 = 187,704 : x
  2. Step 2: Convert to fraction form
    86,508/187,704 = 187,704/x
  3. Step 3: Cross multiply
    86,508x = 187,704 × 187,704
  4. Step 4: Simplify right side
    86,508x = 35,232,791,616
  5. Step 5: Solve for x
    x = 35,232,791,616/86,508
  6. Step 6: Final answer
    x = 407,277.84

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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.