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Finding the Fourth Proportional to 454.42, 627.95 and 343.72

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Solution

The fourth proportional to 454.42, 627.95 and 343.72 is: 474.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.42 : 627.95 = 343.72 : x
  2. Step 2: Convert to fraction form
    454.42/627.95 = 343.72/x
  3. Step 3: Cross multiply
    454.42x = 627.95 × 343.72
  4. Step 4: Simplify right side
    454.42x = 215,838.97
  5. Step 5: Solve for x
    x = 215,838.97/454.42
  6. Step 6: Final answer
    x = 474.98

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