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Finding the Fourth Proportional to 330,241.44, 455,872.70 and 222,956.79

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Solution

The fourth proportional to 330,241.44, 455,872.70 and 222,956.79 is: 307,774.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,241.44 : 455,872.70 = 222,956.79 : x
  2. Step 2: Convert to fraction form
    330,241.44/455,872.70 = 222,956.79/x
  3. Step 3: Cross multiply
    330,241.44x = 455,872.70 × 222,956.79
  4. Step 4: Simplify right side
    330,241.44x = 101,639,912,725.85
  5. Step 5: Solve for x
    x = 101,639,912,725.85/330,241.44
  6. Step 6: Final answer
    x = 307,774.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.