Home / 222,453.20-306,986.33-120,479.87

Finding the Fourth Proportional to 222,453.20, 306,986.33 and 120,479.87

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Solution

The fourth proportional to 222,453.20, 306,986.33 and 120,479.87 is: 166,262.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,453.20 : 306,986.33 = 120,479.87 : x
  2. Step 2: Convert to fraction form
    222,453.20/306,986.33 = 120,479.87/x
  3. Step 3: Cross multiply
    222,453.20x = 306,986.33 × 120,479.87
  4. Step 4: Simplify right side
    222,453.20x = 36,985,670,992.85
  5. Step 5: Solve for x
    x = 36,985,670,992.85/222,453.20
  6. Step 6: Final answer
    x = 166,262.71

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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.