Home / 221,023.80-331,535.70-54,811.80

Finding the Fourth Proportional to 221,023.80, 331,535.70 and 54,811.80

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Solution

The fourth proportional to 221,023.80, 331,535.70 and 54,811.80 is: 82,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,023.80 : 331,535.70 = 54,811.80 : x
  2. Step 2: Convert to fraction form
    221,023.80/331,535.70 = 54,811.80/x
  3. Step 3: Cross multiply
    221,023.80x = 331,535.70 × 54,811.80
  4. Step 4: Simplify right side
    221,023.80x = 18,172,068,481.26
  5. Step 5: Solve for x
    x = 18,172,068,481.26/221,023.80
  6. Step 6: Final answer
    x = 82,217.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.