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Finding the Fourth Proportional to 345.50, 477 and 229.26

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Solution

The fourth proportional to 345.50, 477 and 229.26 is: 316.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    345.50 : 477 = 229.26 : x
  2. Step 2: Convert to fraction form
    345.50/477 = 229.26/x
  3. Step 3: Cross multiply
    345.50x = 477 × 229.26
  4. Step 4: Simplify right side
    345.50x = 109,357.02
  5. Step 5: Solve for x
    x = 109,357.02/345.50
  6. Step 6: Final answer
    x = 316.52

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