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Finding the Fourth Proportional to 300,380.73, 450,073.52 and 211,198.51

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Solution

The fourth proportional to 300,380.73, 450,073.52 and 211,198.51 is: 316,447.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,380.73 : 450,073.52 = 211,198.51 : x
  2. Step 2: Convert to fraction form
    300,380.73/450,073.52 = 211,198.51/x
  3. Step 3: Cross multiply
    300,380.73x = 450,073.52 × 211,198.51
  4. Step 4: Simplify right side
    300,380.73x = 95,054,856,814.46
  5. Step 5: Solve for x
    x = 95,054,856,814.46/300,380.73
  6. Step 6: Final answer
    x = 316,447.92

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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.