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Finding the Fourth Proportional to 216,463.07, 298,714.07 and 120,978.65

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Solution

The fourth proportional to 216,463.07, 298,714.07 and 120,978.65 is: 166,947.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,463.07 : 298,714.07 = 120,978.65 : x
  2. Step 2: Convert to fraction form
    216,463.07/298,714.07 = 120,978.65/x
  3. Step 3: Cross multiply
    216,463.07x = 298,714.07 × 120,978.65
  4. Step 4: Simplify right side
    216,463.07x = 36,138,022,826.14
  5. Step 5: Solve for x
    x = 36,138,022,826.14/216,463.07
  6. Step 6: Final answer
    x = 166,947.76

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