Home / 222,255.08-306,709.62-120,278.30

Finding the Fourth Proportional to 222,255.08, 306,709.62 and 120,278.30

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Solution

The fourth proportional to 222,255.08, 306,709.62 and 120,278.30 is: 165,982.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,255.08 : 306,709.62 = 120,278.30 : x
  2. Step 2: Convert to fraction form
    222,255.08/306,709.62 = 120,278.30/x
  3. Step 3: Cross multiply
    222,255.08x = 306,709.62 × 120,278.30
  4. Step 4: Simplify right side
    222,255.08x = 36,890,511,687.25
  5. Step 5: Solve for x
    x = 36,890,511,687.25/222,255.08
  6. Step 6: Final answer
    x = 165,982.76

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1.5x scale

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.