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Finding the Fourth Proportional to 278,942.85, 385,039.85 and 165,764.25

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Solution

The fourth proportional to 278,942.85, 385,039.85 and 165,764.25 is: 228,813.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,942.85 : 385,039.85 = 165,764.25 : x
  2. Step 2: Convert to fraction form
    278,942.85/385,039.85 = 165,764.25/x
  3. Step 3: Cross multiply
    278,942.85x = 385,039.85 × 165,764.25
  4. Step 4: Simplify right side
    278,942.85x = 63,825,841,126.54
  5. Step 5: Solve for x
    x = 63,825,841,126.54/278,942.85
  6. Step 6: Final answer
    x = 228,813.33

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