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Finding the Fourth Proportional to 215,234.68, 322,850.94 and 55,310.44

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Solution

The fourth proportional to 215,234.68, 322,850.94 and 55,310.44 is: 82,965.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,234.68 : 322,850.94 = 55,310.44 : x
  2. Step 2: Convert to fraction form
    215,234.68/322,850.94 = 55,310.44/x
  3. Step 3: Cross multiply
    215,234.68x = 322,850.94 × 55,310.44
  4. Step 4: Simplify right side
    215,234.68x = 17,857,027,545.81
  5. Step 5: Solve for x
    x = 17,857,027,545.81/215,234.68
  6. Step 6: Final answer
    x = 82,965.38

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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.