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Finding the Fourth Proportional to 978.44, 1,467.64 and 248

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Solution

The fourth proportional to 978.44, 1,467.64 and 248 is: 371.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    978.44 : 1,467.64 = 248 : x
  2. Step 2: Convert to fraction form
    978.44/1,467.64 = 248/x
  3. Step 3: Cross multiply
    978.44x = 1,467.64 × 248
  4. Step 4: Simplify right side
    978.44x = 363,974.72
  5. Step 5: Solve for x
    x = 363,974.72/978.44
  6. Step 6: Final answer
    x = 371.99

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