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Finding the Fourth Proportional to 203,366.73, 280,662.89 and 112,751.12

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Solution

The fourth proportional to 203,366.73, 280,662.89 and 112,751.12 is: 155,605.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,366.73 : 280,662.89 = 112,751.12 : x
  2. Step 2: Convert to fraction form
    203,366.73/280,662.89 = 112,751.12/x
  3. Step 3: Cross multiply
    203,366.73x = 280,662.89 × 112,751.12
  4. Step 4: Simplify right side
    203,366.73x = 31,645,053,222.87
  5. Step 5: Solve for x
    x = 31,645,053,222.87/203,366.73
  6. Step 6: Final answer
    x = 155,605.85

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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.