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Finding the Fourth Proportional to 291.07, 436.65 and 169.27

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Solution

The fourth proportional to 291.07, 436.65 and 169.27 is: 253.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    291.07 : 436.65 = 169.27 : x
  2. Step 2: Convert to fraction form
    291.07/436.65 = 169.27/x
  3. Step 3: Cross multiply
    291.07x = 436.65 × 169.27
  4. Step 4: Simplify right side
    291.07x = 73,911.75
  5. Step 5: Solve for x
    x = 73,911.75/291.07
  6. Step 6: Final answer
    x = 253.93

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