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Finding the Fourth Proportional to 543.48, 814.98 and 173.19

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Solution

The fourth proportional to 543.48, 814.98 and 173.19 is: 259.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.48 : 814.98 = 173.19 : x
  2. Step 2: Convert to fraction form
    543.48/814.98 = 173.19/x
  3. Step 3: Cross multiply
    543.48x = 814.98 × 173.19
  4. Step 4: Simplify right side
    543.48x = 141,146.39
  5. Step 5: Solve for x
    x = 141,146.39/543.48
  6. Step 6: Final answer
    x = 259.71

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