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Finding the Fourth Proportional to 203,481.34, 280,790.52 and 112,833.97

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Solution

The fourth proportional to 203,481.34, 280,790.52 and 112,833.97 is: 155,703.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,481.34 : 280,790.52 = 112,833.97 : x
  2. Step 2: Convert to fraction form
    203,481.34/280,790.52 = 112,833.97/x
  3. Step 3: Cross multiply
    203,481.34x = 280,790.52 × 112,833.97
  4. Step 4: Simplify right side
    203,481.34x = 31,682,709,109.96
  5. Step 5: Solve for x
    x = 31,682,709,109.96/203,481.34
  6. Step 6: Final answer
    x = 155,703.27

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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.