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Finding the Fourth Proportional to 574.02, 860.49 and 189

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Solution

The fourth proportional to 574.02, 860.49 and 189 is: 283.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.02 : 860.49 = 189 : x
  2. Step 2: Convert to fraction form
    574.02/860.49 = 189/x
  3. Step 3: Cross multiply
    574.02x = 860.49 × 189
  4. Step 4: Simplify right side
    574.02x = 162,632.61
  5. Step 5: Solve for x
    x = 162,632.61/574.02
  6. Step 6: Final answer
    x = 283.32

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