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Finding the Fourth Proportional to 341.91, 512.58 and 159.21

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Solution

The fourth proportional to 341.91, 512.58 and 159.21 is: 238.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.91 : 512.58 = 159.21 : x
  2. Step 2: Convert to fraction form
    341.91/512.58 = 159.21/x
  3. Step 3: Cross multiply
    341.91x = 512.58 × 159.21
  4. Step 4: Simplify right side
    341.91x = 81,607.86
  5. Step 5: Solve for x
    x = 81,607.86/341.91
  6. Step 6: Final answer
    x = 238.68

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