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Finding the Fourth Proportional to 381.02, 571.71 and 188.62

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Solution

The fourth proportional to 381.02, 571.71 and 188.62 is: 283.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    381.02 : 571.71 = 188.62 : x
  2. Step 2: Convert to fraction form
    381.02/571.71 = 188.62/x
  3. Step 3: Cross multiply
    381.02x = 571.71 × 188.62
  4. Step 4: Simplify right side
    381.02x = 107,835.94
  5. Step 5: Solve for x
    x = 107,835.94/381.02
  6. Step 6: Final answer
    x = 283.02

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