Home / 221,555.42-332,441.57-137,293.05

Finding the Fourth Proportional to 221,555.42, 332,441.57 and 137,293.05

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Solution

The fourth proportional to 221,555.42, 332,441.57 and 137,293.05 is: 206,006.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,555.42 : 332,441.57 = 137,293.05 : x
  2. Step 2: Convert to fraction form
    221,555.42/332,441.57 = 137,293.05/x
  3. Step 3: Cross multiply
    221,555.42x = 332,441.57 × 137,293.05
  4. Step 4: Simplify right side
    221,555.42x = 45,641,917,092.09
  5. Step 5: Solve for x
    x = 45,641,917,092.09/221,555.42
  6. Step 6: Final answer
    x = 206,006.77

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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.