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Finding the Fourth Proportional to 203,140.54, 280,334.73 and 112,494.52

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Solution

The fourth proportional to 203,140.54, 280,334.73 and 112,494.52 is: 155,242.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,140.54 : 280,334.73 = 112,494.52 : x
  2. Step 2: Convert to fraction form
    203,140.54/280,334.73 = 112,494.52/x
  3. Step 3: Cross multiply
    203,140.54x = 280,334.73 × 112,494.52
  4. Step 4: Simplify right side
    203,140.54x = 31,536,120,890.68
  5. Step 5: Solve for x
    x = 31,536,120,890.68/203,140.54
  6. Step 6: Final answer
    x = 155,242.87

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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.