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Finding the Fourth Proportional to 313.18, 469.78 and 226

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Solution

The fourth proportional to 313.18, 469.78 and 226 is: 339.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    313.18 : 469.78 = 226 : x
  2. Step 2: Convert to fraction form
    313.18/469.78 = 226/x
  3. Step 3: Cross multiply
    313.18x = 469.78 × 226
  4. Step 4: Simplify right side
    313.18x = 106,170.28
  5. Step 5: Solve for x
    x = 106,170.28/313.18
  6. Step 6: Final answer
    x = 339.01

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