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Finding the Fourth Proportional to 203,896.56, 281,279.60 and 143,500.72

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Solution

The fourth proportional to 203,896.56, 281,279.60 and 143,500.72 is: 197,962.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,896.56 : 281,279.60 = 143,500.72 : x
  2. Step 2: Convert to fraction form
    203,896.56/281,279.60 = 143,500.72/x
  3. Step 3: Cross multiply
    203,896.56x = 281,279.60 × 143,500.72
  4. Step 4: Simplify right side
    203,896.56x = 40,363,825,121.31
  5. Step 5: Solve for x
    x = 40,363,825,121.31/203,896.56
  6. Step 6: Final answer
    x = 197,962.27

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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.