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Finding the Fourth Proportional to 338.51, 466.76 and 276.15

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Solution

The fourth proportional to 338.51, 466.76 and 276.15 is: 380.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.51 : 466.76 = 276.15 : x
  2. Step 2: Convert to fraction form
    338.51/466.76 = 276.15/x
  3. Step 3: Cross multiply
    338.51x = 466.76 × 276.15
  4. Step 4: Simplify right side
    338.51x = 128,895.59
  5. Step 5: Solve for x
    x = 128,895.59/338.51
  6. Step 6: Final answer
    x = 380.77

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