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Finding the Third Proportional to 115,608 and 238,128

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Solution

The third proportional to 115,608 and 238,128 is: 490,493.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,608 : 238,128 = 238,128 : x
  2. Step 2: Convert to fraction form
    115,608/238,128 = 238,128/x
  3. Step 3: Cross multiply
    115,608x = 238,128 × 238,128
  4. Step 4: Simplify right side
    115,608x = 56,704,944,384
  5. Step 5: Solve for x
    x = 56,704,944,384/115,608
  6. Step 6: Final answer
    x = 490,493.26

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.