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Finding the Fourth Proportional to 218,576.92, 301,628.02 and 121,778.50

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Solution

The fourth proportional to 218,576.92, 301,628.02 and 121,778.50 is: 168,049.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,576.92 : 301,628.02 = 121,778.50 : x
  2. Step 2: Convert to fraction form
    218,576.92/301,628.02 = 121,778.50/x
  3. Step 3: Cross multiply
    218,576.92x = 301,628.02 × 121,778.50
  4. Step 4: Simplify right side
    218,576.92x = 36,731,807,833.57
  5. Step 5: Solve for x
    x = 36,731,807,833.57/218,576.92
  6. Step 6: Final answer
    x = 168,049.80

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