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Finding the Third Proportional to 199,270 and 431,736

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Solution

The third proportional to 199,270 and 431,736 is: 935,394.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,270 : 431,736 = 431,736 : x
  2. Step 2: Convert to fraction form
    199,270/431,736 = 431,736/x
  3. Step 3: Cross multiply
    199,270x = 431,736 × 431,736
  4. Step 4: Simplify right side
    199,270x = 186,395,973,696
  5. Step 5: Solve for x
    x = 186,395,973,696/199,270
  6. Step 6: Final answer
    x = 935,394.06

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.