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Finding the Fourth Proportional to 651.81, 978 and 327.27

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Solution

The fourth proportional to 651.81, 978 and 327.27 is: 491.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.81 : 978 = 327.27 : x
  2. Step 2: Convert to fraction form
    651.81/978 = 327.27/x
  3. Step 3: Cross multiply
    651.81x = 978 × 327.27
  4. Step 4: Simplify right side
    651.81x = 320,070.06
  5. Step 5: Solve for x
    x = 320,070.06/651.81
  6. Step 6: Final answer
    x = 491.05

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