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Finding the Fourth Proportional to 203,562.72, 305,519.76 and 141,276.96

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Solution

The fourth proportional to 203,562.72, 305,519.76 and 141,276.96 is: 212,037.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,562.72 : 305,519.76 = 141,276.96 : x
  2. Step 2: Convert to fraction form
    203,562.72/305,519.76 = 141,276.96/x
  3. Step 3: Cross multiply
    203,562.72x = 305,519.76 × 141,276.96
  4. Step 4: Simplify right side
    203,562.72x = 43,162,902,912.73
  5. Step 5: Solve for x
    x = 43,162,902,912.73/203,562.72
  6. Step 6: Final answer
    x = 212,037.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.