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Finding the Fourth Proportional to 399.47, 599.55 and 194.27

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Solution

The fourth proportional to 399.47, 599.55 and 194.27 is: 291.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    399.47 : 599.55 = 194.27 : x
  2. Step 2: Convert to fraction form
    399.47/599.55 = 194.27/x
  3. Step 3: Cross multiply
    399.47x = 599.55 × 194.27
  4. Step 4: Simplify right side
    399.47x = 116,471.98
  5. Step 5: Solve for x
    x = 116,471.98/399.47
  6. Step 6: Final answer
    x = 291.57

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