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Finding the Fourth Proportional to 286.04, 429.60 and 170.84

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Solution

The fourth proportional to 286.04, 429.60 and 170.84 is: 256.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    286.04 : 429.60 = 170.84 : x
  2. Step 2: Convert to fraction form
    286.04/429.60 = 170.84/x
  3. Step 3: Cross multiply
    286.04x = 429.60 × 170.84
  4. Step 4: Simplify right side
    286.04x = 73,392.86
  5. Step 5: Solve for x
    x = 73,392.86/286.04
  6. Step 6: Final answer
    x = 256.58

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