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Finding the Fourth Proportional to 438,045.20, 656,808.60 and 228,093.20

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Solution

The fourth proportional to 438,045.20, 656,808.60 and 228,093.20 is: 342,004.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,045.20 : 656,808.60 = 228,093.20 : x
  2. Step 2: Convert to fraction form
    438,045.20/656,808.60 = 228,093.20/x
  3. Step 3: Cross multiply
    438,045.20x = 656,808.60 × 228,093.20
  4. Step 4: Simplify right side
    438,045.20x = 149,813,575,361.52
  5. Step 5: Solve for x
    x = 149,813,575,361.52/438,045.20
  6. Step 6: Final answer
    x = 342,004.83

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