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Finding the Fourth Proportional to 321,451.87, 482,079.37 and 222,249.55

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Solution

The fourth proportional to 321,451.87, 482,079.37 and 222,249.55 is: 333,306.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,451.87 : 482,079.37 = 222,249.55 : x
  2. Step 2: Convert to fraction form
    321,451.87/482,079.37 = 222,249.55/x
  3. Step 3: Cross multiply
    321,451.87x = 482,079.37 × 222,249.55
  4. Step 4: Simplify right side
    321,451.87x = 107,141,919,525.14
  5. Step 5: Solve for x
    x = 107,141,919,525.14/321,451.87
  6. Step 6: Final answer
    x = 333,306.26

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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.