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Finding the Fourth Proportional to 664,091.20, 996,136.80 and 165,455.20

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Solution

The fourth proportional to 664,091.20, 996,136.80 and 165,455.20 is: 248,182.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,091.20 : 996,136.80 = 165,455.20 : x
  2. Step 2: Convert to fraction form
    664,091.20/996,136.80 = 165,455.20/x
  3. Step 3: Cross multiply
    664,091.20x = 996,136.80 × 165,455.20
  4. Step 4: Simplify right side
    664,091.20x = 164,816,013,471.36
  5. Step 5: Solve for x
    x = 164,816,013,471.36/664,091.20
  6. Step 6: Final answer
    x = 248,182.80

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