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Finding the Fourth Proportional to 469.49, 647.91 and 273.06

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Solution

The fourth proportional to 469.49, 647.91 and 273.06 is: 376.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.49 : 647.91 = 273.06 : x
  2. Step 2: Convert to fraction form
    469.49/647.91 = 273.06/x
  3. Step 3: Cross multiply
    469.49x = 647.91 × 273.06
  4. Step 4: Simplify right side
    469.49x = 176,918.30
  5. Step 5: Solve for x
    x = 176,918.30/469.49
  6. Step 6: Final answer
    x = 376.83

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