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Finding the Third Proportional to 86,230 and 187,647

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Solution

The third proportional to 86,230 and 187,647 is: 408,342.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,230 : 187,647 = 187,647 : x
  2. Step 2: Convert to fraction form
    86,230/187,647 = 187,647/x
  3. Step 3: Cross multiply
    86,230x = 187,647 × 187,647
  4. Step 4: Simplify right side
    86,230x = 35,211,396,609
  5. Step 5: Solve for x
    x = 35,211,396,609/86,230
  6. Step 6: Final answer
    x = 408,342.76

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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.