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Finding the Fourth Proportional to 304.14, 419.78 and 187.62

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Solution

The fourth proportional to 304.14, 419.78 and 187.62 is: 258.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    304.14 : 419.78 = 187.62 : x
  2. Step 2: Convert to fraction form
    304.14/419.78 = 187.62/x
  3. Step 3: Cross multiply
    304.14x = 419.78 × 187.62
  4. Step 4: Simplify right side
    304.14x = 78,759.12
  5. Step 5: Solve for x
    x = 78,759.12/304.14
  6. Step 6: Final answer
    x = 258.96

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