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Finding the Third Proportional to 201,979 and 313,175.63

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Solution

The third proportional to 201,979 and 313,175.63 is: 485,589.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,979 : 313,175.63 = 313,175.63 : x
  2. Step 2: Convert to fraction form
    201,979/313,175.63 = 313,175.63/x
  3. Step 3: Cross multiply
    201,979x = 313,175.63 × 313,175.63
  4. Step 4: Simplify right side
    201,979x = 98,078,972,094.14
  5. Step 5: Solve for x
    x = 98,078,972,094.14/201,979
  6. Step 6: Final answer
    x = 485,589.95

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.