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Finding the Fourth Proportional to 307.98, 460.80 and 262.44

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Solution

The fourth proportional to 307.98, 460.80 and 262.44 is: 392.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    307.98 : 460.80 = 262.44 : x
  2. Step 2: Convert to fraction form
    307.98/460.80 = 262.44/x
  3. Step 3: Cross multiply
    307.98x = 460.80 × 262.44
  4. Step 4: Simplify right side
    307.98x = 120,932.35
  5. Step 5: Solve for x
    x = 120,932.35/307.98
  6. Step 6: Final answer
    x = 392.66

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