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Finding the Fourth Proportional to 284.19, 426.41 and 168.86

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Solution

The fourth proportional to 284.19, 426.41 and 168.86 is: 253.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.19 : 426.41 = 168.86 : x
  2. Step 2: Convert to fraction form
    284.19/426.41 = 168.86/x
  3. Step 3: Cross multiply
    284.19x = 426.41 × 168.86
  4. Step 4: Simplify right side
    284.19x = 72,000.62
  5. Step 5: Solve for x
    x = 72,000.62/284.19
  6. Step 6: Final answer
    x = 253.35

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