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Finding the Fourth Proportional to 250,351.50, 345,493.17 and 137,181.54

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Solution

The fourth proportional to 250,351.50, 345,493.17 and 137,181.54 is: 189,314.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,351.50 : 345,493.17 = 137,181.54 : x
  2. Step 2: Convert to fraction form
    250,351.50/345,493.17 = 137,181.54/x
  3. Step 3: Cross multiply
    250,351.50x = 345,493.17 × 137,181.54
  4. Step 4: Simplify right side
    250,351.50x = 47,395,285,120.08
  5. Step 5: Solve for x
    x = 47,395,285,120.08/250,351.50
  6. Step 6: Final answer
    x = 189,314.96

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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.