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Finding the Fourth Proportional to 312,242.88, 430,789.44 and 203,297.47

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Solution

The fourth proportional to 312,242.88, 430,789.44 and 203,297.47 is: 280,481.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,242.88 : 430,789.44 = 203,297.47 : x
  2. Step 2: Convert to fraction form
    312,242.88/430,789.44 = 203,297.47/x
  3. Step 3: Cross multiply
    312,242.88x = 430,789.44 × 203,297.47
  4. Step 4: Simplify right side
    312,242.88x = 87,578,403,254.72
  5. Step 5: Solve for x
    x = 87,578,403,254.72/312,242.88
  6. Step 6: Final answer
    x = 280,481.67

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