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Finding the Third Proportional to 200,979 and 272,937

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Solution

The third proportional to 200,979 and 272,937 is: 370,658.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,979 : 272,937 = 272,937 : x
  2. Step 2: Convert to fraction form
    200,979/272,937 = 272,937/x
  3. Step 3: Cross multiply
    200,979x = 272,937 × 272,937
  4. Step 4: Simplify right side
    200,979x = 74,494,605,969
  5. Step 5: Solve for x
    x = 74,494,605,969/200,979
  6. Step 6: Final answer
    x = 370,658.66

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.