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Finding the Fourth Proportional to 651.68, 978 and 363.36

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Solution

The fourth proportional to 651.68, 978 and 363.36 is: 545.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.68 : 978 = 363.36 : x
  2. Step 2: Convert to fraction form
    651.68/978 = 363.36/x
  3. Step 3: Cross multiply
    651.68x = 978 × 363.36
  4. Step 4: Simplify right side
    651.68x = 355,366.08
  5. Step 5: Solve for x
    x = 355,366.08/651.68
  6. Step 6: Final answer
    x = 545.31

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