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Finding the Fourth Proportional to 296,704.92, 445,053.30 and 72,067

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Solution

The fourth proportional to 296,704.92, 445,053.30 and 72,067 is: 108,099.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,704.92 : 445,053.30 = 72,067 : x
  2. Step 2: Convert to fraction form
    296,704.92/445,053.30 = 72,067/x
  3. Step 3: Cross multiply
    296,704.92x = 445,053.30 × 72,067
  4. Step 4: Simplify right side
    296,704.92x = 32,073,656,171.10
  5. Step 5: Solve for x
    x = 32,073,656,171.10/296,704.92
  6. Step 6: Final answer
    x = 108,099.51

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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.