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Finding the Fourth Proportional to 464.21, 640.59 and 267.74

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Solution

The fourth proportional to 464.21, 640.59 and 267.74 is: 369.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.21 : 640.59 = 267.74 : x
  2. Step 2: Convert to fraction form
    464.21/640.59 = 267.74/x
  3. Step 3: Cross multiply
    464.21x = 640.59 × 267.74
  4. Step 4: Simplify right side
    464.21x = 171,508.36
  5. Step 5: Solve for x
    x = 171,508.36/464.21
  6. Step 6: Final answer
    x = 369.47

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