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Finding the Third Proportional to 138,503 and 198,052

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Solution

The third proportional to 138,503 and 198,052 is: 283,203.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,503 : 198,052 = 198,052 : x
  2. Step 2: Convert to fraction form
    138,503/198,052 = 198,052/x
  3. Step 3: Cross multiply
    138,503x = 198,052 × 198,052
  4. Step 4: Simplify right side
    138,503x = 39,224,594,704
  5. Step 5: Solve for x
    x = 39,224,594,704/138,503
  6. Step 6: Final answer
    x = 283,203.94

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.