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Finding the Fourth Proportional to 279,195.89, 417,737.01 and 165,404.80

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Solution

The fourth proportional to 279,195.89, 417,737.01 and 165,404.80 is: 247,481.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,195.89 : 417,737.01 = 165,404.80 : x
  2. Step 2: Convert to fraction form
    279,195.89/417,737.01 = 165,404.80/x
  3. Step 3: Cross multiply
    279,195.89x = 417,737.01 × 165,404.80
  4. Step 4: Simplify right side
    279,195.89x = 69,095,705,336.04
  5. Step 5: Solve for x
    x = 69,095,705,336.04/279,195.89
  6. Step 6: Final answer
    x = 247,481.10

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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.