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Finding the Fourth Proportional to 217,054.40, 325,322.40 and 90,694.40

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Solution

The fourth proportional to 217,054.40, 325,322.40 and 90,694.40 is: 135,933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,054.40 : 325,322.40 = 90,694.40 : x
  2. Step 2: Convert to fraction form
    217,054.40/325,322.40 = 90,694.40/x
  3. Step 3: Cross multiply
    217,054.40x = 325,322.40 × 90,694.40
  4. Step 4: Simplify right side
    217,054.40x = 29,504,919,874.56
  5. Step 5: Solve for x
    x = 29,504,919,874.56/217,054.40
  6. Step 6: Final answer
    x = 135,933.30

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