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Finding the Fourth Proportional to 454.22, 682.41 and 261.98

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Solution

The fourth proportional to 454.22, 682.41 and 261.98 is: 393.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.22 : 682.41 = 261.98 : x
  2. Step 2: Convert to fraction form
    454.22/682.41 = 261.98/x
  3. Step 3: Cross multiply
    454.22x = 682.41 × 261.98
  4. Step 4: Simplify right side
    454.22x = 178,777.77
  5. Step 5: Solve for x
    x = 178,777.77/454.22
  6. Step 6: Final answer
    x = 393.59

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