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Finding the Fourth Proportional to 370.21, 554.79 and 164.71

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Solution

The fourth proportional to 370.21, 554.79 and 164.71 is: 246.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.21 : 554.79 = 164.71 : x
  2. Step 2: Convert to fraction form
    370.21/554.79 = 164.71/x
  3. Step 3: Cross multiply
    370.21x = 554.79 × 164.71
  4. Step 4: Simplify right side
    370.21x = 91,379.46
  5. Step 5: Solve for x
    x = 91,379.46/370.21
  6. Step 6: Final answer
    x = 246.83

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