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Finding the Fourth Proportional to 223.15, 334.45 and 141.81

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Solution

The fourth proportional to 223.15, 334.45 and 141.81 is: 212.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.15 : 334.45 = 141.81 : x
  2. Step 2: Convert to fraction form
    223.15/334.45 = 141.81/x
  3. Step 3: Cross multiply
    223.15x = 334.45 × 141.81
  4. Step 4: Simplify right side
    223.15x = 47,428.35
  5. Step 5: Solve for x
    x = 47,428.35/223.15
  6. Step 6: Final answer
    x = 212.54

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