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Finding the Third Proportional to 117,081 and 251,913

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Solution

The third proportional to 117,081 and 251,913 is: 542,019.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,081 : 251,913 = 251,913 : x
  2. Step 2: Convert to fraction form
    117,081/251,913 = 251,913/x
  3. Step 3: Cross multiply
    117,081x = 251,913 × 251,913
  4. Step 4: Simplify right side
    117,081x = 63,460,159,569
  5. Step 5: Solve for x
    x = 63,460,159,569/117,081
  6. Step 6: Final answer
    x = 542,019.28

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.