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Finding the Fourth Proportional to 221,555.80, 331,865.70 and 146,711.80

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Solution

The fourth proportional to 221,555.80, 331,865.70 and 146,711.80 is: 219,757.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,555.80 : 331,865.70 = 146,711.80 : x
  2. Step 2: Convert to fraction form
    221,555.80/331,865.70 = 146,711.80/x
  3. Step 3: Cross multiply
    221,555.80x = 331,865.70 × 146,711.80
  4. Step 4: Simplify right side
    221,555.80x = 48,688,614,205.26
  5. Step 5: Solve for x
    x = 48,688,614,205.26/221,555.80
  6. Step 6: Final answer
    x = 219,757.80

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