Home / 221,481.40-332,269.98-71,736.76

Finding the Fourth Proportional to 221,481.40, 332,269.98 and 71,736.76

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Solution

The fourth proportional to 221,481.40, 332,269.98 and 71,736.76 is: 107,620.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,481.40 : 332,269.98 = 71,736.76 : x
  2. Step 2: Convert to fraction form
    221,481.40/332,269.98 = 71,736.76/x
  3. Step 3: Cross multiply
    221,481.40x = 332,269.98 × 71,736.76
  4. Step 4: Simplify right side
    221,481.40x = 23,835,971,810.46
  5. Step 5: Solve for x
    x = 23,835,971,810.46/221,481.40
  6. Step 6: Final answer
    x = 107,620.65

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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.