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Finding the Fourth Proportional to 479.44, 719.08 and 171.25

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Solution

The fourth proportional to 479.44, 719.08 and 171.25 is: 256.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.44 : 719.08 = 171.25 : x
  2. Step 2: Convert to fraction form
    479.44/719.08 = 171.25/x
  3. Step 3: Cross multiply
    479.44x = 719.08 × 171.25
  4. Step 4: Simplify right side
    479.44x = 123,142.45
  5. Step 5: Solve for x
    x = 123,142.45/479.44
  6. Step 6: Final answer
    x = 256.85

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