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Finding the Fourth Proportional to 313.41, 468.95 and 251.53

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Solution

The fourth proportional to 313.41, 468.95 and 251.53 is: 376.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.41 : 468.95 = 251.53 : x
  2. Step 2: Convert to fraction form
    313.41/468.95 = 251.53/x
  3. Step 3: Cross multiply
    313.41x = 468.95 × 251.53
  4. Step 4: Simplify right side
    313.41x = 117,954.45
  5. Step 5: Solve for x
    x = 117,954.45/313.41
  6. Step 6: Final answer
    x = 376.36

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