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Finding the Fourth Proportional to 278,720.39, 384,268.14 and 201,130.92

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Solution

The fourth proportional to 278,720.39, 384,268.14 and 201,130.92 is: 277,296.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,720.39 : 384,268.14 = 201,130.92 : x
  2. Step 2: Convert to fraction form
    278,720.39/384,268.14 = 201,130.92/x
  3. Step 3: Cross multiply
    278,720.39x = 384,268.14 × 201,130.92
  4. Step 4: Simplify right side
    278,720.39x = 77,288,205,322.80
  5. Step 5: Solve for x
    x = 77,288,205,322.80/278,720.39
  6. Step 6: Final answer
    x = 277,296.56

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