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Finding the Third Proportional to 64,266 and 138,936

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Solution

The third proportional to 64,266 and 138,936 is: 300,364.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,266 : 138,936 = 138,936 : x
  2. Step 2: Convert to fraction form
    64,266/138,936 = 138,936/x
  3. Step 3: Cross multiply
    64,266x = 138,936 × 138,936
  4. Step 4: Simplify right side
    64,266x = 19,303,212,096
  5. Step 5: Solve for x
    x = 19,303,212,096/64,266
  6. Step 6: Final answer
    x = 300,364.30

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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.