Home / 222,183.66-306,612.60-120,208.78

Finding the Fourth Proportional to 222,183.66, 306,612.60 and 120,208.78

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Solution

The fourth proportional to 222,183.66, 306,612.60 and 120,208.78 is: 165,887.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,183.66 : 306,612.60 = 120,208.78 : x
  2. Step 2: Convert to fraction form
    222,183.66/306,612.60 = 120,208.78/x
  3. Step 3: Cross multiply
    222,183.66x = 306,612.60 × 120,208.78
  4. Step 4: Simplify right side
    222,183.66x = 36,857,526,578.63
  5. Step 5: Solve for x
    x = 36,857,526,578.63/222,183.66
  6. Step 6: Final answer
    x = 165,887.66

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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.