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Finding the Fourth Proportional to 235.32, 352.80 and 189.60

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Solution

The fourth proportional to 235.32, 352.80 and 189.60 is: 284.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.32 : 352.80 = 189.60 : x
  2. Step 2: Convert to fraction form
    235.32/352.80 = 189.60/x
  3. Step 3: Cross multiply
    235.32x = 352.80 × 189.60
  4. Step 4: Simplify right side
    235.32x = 66,890.88
  5. Step 5: Solve for x
    x = 66,890.88/235.32
  6. Step 6: Final answer
    x = 284.25

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