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Finding the Fourth Proportional to 193,467.97, 266,997.77 and 128,826.37

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Solution

The fourth proportional to 193,467.97, 266,997.77 and 128,826.37 is: 177,788.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,467.97 : 266,997.77 = 128,826.37 : x
  2. Step 2: Convert to fraction form
    193,467.97/266,997.77 = 128,826.37/x
  3. Step 3: Cross multiply
    193,467.97x = 266,997.77 × 128,826.37
  4. Step 4: Simplify right side
    193,467.97x = 34,396,353,507.19
  5. Step 5: Solve for x
    x = 34,396,353,507.19/193,467.97
  6. Step 6: Final answer
    x = 177,788.36

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