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Finding the Fourth Proportional to 323,725.60, 485,199.60 and 165,872.80

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Solution

The fourth proportional to 323,725.60, 485,199.60 and 165,872.80 is: 248,609.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,725.60 : 485,199.60 = 165,872.80 : x
  2. Step 2: Convert to fraction form
    323,725.60/485,199.60 = 165,872.80/x
  3. Step 3: Cross multiply
    323,725.60x = 485,199.60 × 165,872.80
  4. Step 4: Simplify right side
    323,725.60x = 80,481,416,210.88
  5. Step 5: Solve for x
    x = 80,481,416,210.88/323,725.60
  6. Step 6: Final answer
    x = 248,609.98

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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.