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Finding the Fourth Proportional to 188,343, 259,936.38 and 108,855

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Solution

The fourth proportional to 188,343, 259,936.38 and 108,855 is: 150,233.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,343 : 259,936.38 = 108,855 : x
  2. Step 2: Convert to fraction form
    188,343/259,936.38 = 108,855/x
  3. Step 3: Cross multiply
    188,343x = 259,936.38 × 108,855
  4. Step 4: Simplify right side
    188,343x = 28,295,374,644.90
  5. Step 5: Solve for x
    x = 28,295,374,644.90/188,343
  6. Step 6: Final answer
    x = 150,233.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.