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Finding the Fourth Proportional to 250,636.89, 345,847.05 and 143,213.88

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Solution

The fourth proportional to 250,636.89, 345,847.05 and 143,213.88 is: 197,616.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,636.89 : 345,847.05 = 143,213.88 : x
  2. Step 2: Convert to fraction form
    250,636.89/345,847.05 = 143,213.88/x
  3. Step 3: Cross multiply
    250,636.89x = 345,847.05 × 143,213.88
  4. Step 4: Simplify right side
    250,636.89x = 49,530,099,213.98
  5. Step 5: Solve for x
    x = 49,530,099,213.98/250,636.89
  6. Step 6: Final answer
    x = 197,616.95

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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.