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Finding the Third Proportional to 197,980 and 431,692

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Solution

The third proportional to 197,980 and 431,692 is: 941,297.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,980 : 431,692 = 431,692 : x
  2. Step 2: Convert to fraction form
    197,980/431,692 = 431,692/x
  3. Step 3: Cross multiply
    197,980x = 431,692 × 431,692
  4. Step 4: Simplify right side
    197,980x = 186,357,982,864
  5. Step 5: Solve for x
    x = 186,357,982,864/197,980
  6. Step 6: Final answer
    x = 941,297.01

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.