Home / 221,338.22-305,446.11-120,735.50

Finding the Fourth Proportional to 221,338.22, 305,446.11 and 120,735.50

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Solution

The fourth proportional to 221,338.22, 305,446.11 and 120,735.50 is: 166,614.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,338.22 : 305,446.11 = 120,735.50 : x
  2. Step 2: Convert to fraction form
    221,338.22/305,446.11 = 120,735.50/x
  3. Step 3: Cross multiply
    221,338.22x = 305,446.11 × 120,735.50
  4. Step 4: Simplify right side
    221,338.22x = 36,878,188,813.91
  5. Step 5: Solve for x
    x = 36,878,188,813.91/221,338.22
  6. Step 6: Final answer
    x = 166,614.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.