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Finding the Fourth Proportional to 217,757.28, 326,065.68 and 142,641.12

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Solution

The fourth proportional to 217,757.28, 326,065.68 and 142,641.12 is: 213,588.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,757.28 : 326,065.68 = 142,641.12 : x
  2. Step 2: Convert to fraction form
    217,757.28/326,065.68 = 142,641.12/x
  3. Step 3: Cross multiply
    217,757.28x = 326,065.68 × 142,641.12
  4. Step 4: Simplify right side
    217,757.28x = 46,510,373,788.76
  5. Step 5: Solve for x
    x = 46,510,373,788.76/217,757.28
  6. Step 6: Final answer
    x = 213,588.15

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