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Finding the Fourth Proportional to 358.92, 538.16 and 272.81

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Solution

The fourth proportional to 358.92, 538.16 and 272.81 is: 409.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.92 : 538.16 = 272.81 : x
  2. Step 2: Convert to fraction form
    358.92/538.16 = 272.81/x
  3. Step 3: Cross multiply
    358.92x = 538.16 × 272.81
  4. Step 4: Simplify right side
    358.92x = 146,815.41
  5. Step 5: Solve for x
    x = 146,815.41/358.92
  6. Step 6: Final answer
    x = 409.05

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