Home / 221,431.29-332,199.66-71,671.61

Finding the Fourth Proportional to 221,431.29, 332,199.66 and 71,671.61

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Solution

The fourth proportional to 221,431.29, 332,199.66 and 71,671.61 is: 107,524.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,431.29 : 332,199.66 = 71,671.61 : x
  2. Step 2: Convert to fraction form
    221,431.29/332,199.66 = 71,671.61/x
  3. Step 3: Cross multiply
    221,431.29x = 332,199.66 × 71,671.61
  4. Step 4: Simplify right side
    221,431.29x = 23,809,282,812.65
  5. Step 5: Solve for x
    x = 23,809,282,812.65/221,431.29
  6. Step 6: Final answer
    x = 107,524.47

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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.