Home / 221,718.39-332,491.29-71,922.45

Finding the Fourth Proportional to 221,718.39, 332,491.29 and 71,922.45

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Solution

The fourth proportional to 221,718.39, 332,491.29 and 71,922.45 is: 107,855.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,718.39 : 332,491.29 = 71,922.45 : x
  2. Step 2: Convert to fraction form
    221,718.39/332,491.29 = 71,922.45/x
  3. Step 3: Cross multiply
    221,718.39x = 332,491.29 × 71,922.45
  4. Step 4: Simplify right side
    221,718.39x = 23,913,588,180.46
  5. Step 5: Solve for x
    x = 23,913,588,180.46/221,718.39
  6. Step 6: Final answer
    x = 107,855.68

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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.