Home / 203,110.31-280,288.79-112,464.33

Finding the Fourth Proportional to 203,110.31, 280,288.79 and 112,464.33

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Solution

The fourth proportional to 203,110.31, 280,288.79 and 112,464.33 is: 155,198.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,110.31 : 280,288.79 = 112,464.33 : x
  2. Step 2: Convert to fraction form
    203,110.31/280,288.79 = 112,464.33/x
  3. Step 3: Cross multiply
    203,110.31x = 280,288.79 × 112,464.33
  4. Step 4: Simplify right side
    203,110.31x = 31,522,489,782.20
  5. Step 5: Solve for x
    x = 31,522,489,782.20/203,110.31
  6. Step 6: Final answer
    x = 155,198.86

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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.