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Finding the Third Proportional to 86,397 and 187,260

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Solution

The third proportional to 86,397 and 187,260 is: 405,874.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,397 : 187,260 = 187,260 : x
  2. Step 2: Convert to fraction form
    86,397/187,260 = 187,260/x
  3. Step 3: Cross multiply
    86,397x = 187,260 × 187,260
  4. Step 4: Simplify right side
    86,397x = 35,066,307,600
  5. Step 5: Solve for x
    x = 35,066,307,600/86,397
  6. Step 6: Final answer
    x = 405,874.13

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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.