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Finding the Third Proportional to 197,406 and 281,346

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Solution

The third proportional to 197,406 and 281,346 is: 400,978.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,406 : 281,346 = 281,346 : x
  2. Step 2: Convert to fraction form
    197,406/281,346 = 281,346/x
  3. Step 3: Cross multiply
    197,406x = 281,346 × 281,346
  4. Step 4: Simplify right side
    197,406x = 79,155,571,716
  5. Step 5: Solve for x
    x = 79,155,571,716/197,406
  6. Step 6: Final answer
    x = 400,978.55

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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.