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Finding the Third Proportional to 138,996 and 223,803

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Solution

The third proportional to 138,996 and 223,803 is: 360,354.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,996 : 223,803 = 223,803 : x
  2. Step 2: Convert to fraction form
    138,996/223,803 = 223,803/x
  3. Step 3: Cross multiply
    138,996x = 223,803 × 223,803
  4. Step 4: Simplify right side
    138,996x = 50,087,782,809
  5. Step 5: Solve for x
    x = 50,087,782,809/138,996
  6. Step 6: Final answer
    x = 360,354.13

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.