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Finding the Third Proportional to 139,736 and 197,534

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Solution

The third proportional to 139,736 and 197,534 is: 279,238.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,736 : 197,534 = 197,534 : x
  2. Step 2: Convert to fraction form
    139,736/197,534 = 197,534/x
  3. Step 3: Cross multiply
    139,736x = 197,534 × 197,534
  4. Step 4: Simplify right side
    139,736x = 39,019,681,156
  5. Step 5: Solve for x
    x = 39,019,681,156/139,736
  6. Step 6: Final answer
    x = 279,238.57

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.