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Finding the Fourth Proportional to 652.08, 978.24 and 219.24

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Solution

The fourth proportional to 652.08, 978.24 and 219.24 is: 328.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.08 : 978.24 = 219.24 : x
  2. Step 2: Convert to fraction form
    652.08/978.24 = 219.24/x
  3. Step 3: Cross multiply
    652.08x = 978.24 × 219.24
  4. Step 4: Simplify right side
    652.08x = 214,469.34
  5. Step 5: Solve for x
    x = 214,469.34/652.08
  6. Step 6: Final answer
    x = 328.90

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