Home / 222,281.20-306,747.66-120,306.63

Finding the Fourth Proportional to 222,281.20, 306,747.66 and 120,306.63

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Solution

The fourth proportional to 222,281.20, 306,747.66 and 120,306.63 is: 166,022.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,281.20 : 306,747.66 = 120,306.63 : x
  2. Step 2: Convert to fraction form
    222,281.20/306,747.66 = 120,306.63/x
  3. Step 3: Cross multiply
    222,281.20x = 306,747.66 × 120,306.63
  4. Step 4: Simplify right side
    222,281.20x = 36,903,778,836.44
  5. Step 5: Solve for x
    x = 36,903,778,836.44/222,281.20
  6. Step 6: Final answer
    x = 166,022.94

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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.