Home / 331,229.28-456,778.80-222,579.12

Finding the Fourth Proportional to 331,229.28, 456,778.80 and 222,579.12

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Solution

The fourth proportional to 331,229.28, 456,778.80 and 222,579.12 is: 306,945.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,229.28 : 456,778.80 = 222,579.12 : x
  2. Step 2: Convert to fraction form
    331,229.28/456,778.80 = 222,579.12/x
  3. Step 3: Cross multiply
    331,229.28x = 456,778.80 × 222,579.12
  4. Step 4: Simplify right side
    331,229.28x = 101,669,423,338.66
  5. Step 5: Solve for x
    x = 101,669,423,338.66/331,229.28
  6. Step 6: Final answer
    x = 306,945.76

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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.