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Finding the Fourth Proportional to 251,481.36, 377,212.23 and 85,269.36

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Solution

The fourth proportional to 251,481.36, 377,212.23 and 85,269.36 is: 127,900.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,481.36 : 377,212.23 = 85,269.36 : x
  2. Step 2: Convert to fraction form
    251,481.36/377,212.23 = 85,269.36/x
  3. Step 3: Cross multiply
    251,481.36x = 377,212.23 × 85,269.36
  4. Step 4: Simplify right side
    251,481.36x = 32,164,645,436.27
  5. Step 5: Solve for x
    x = 32,164,645,436.27/251,481.36
  6. Step 6: Final answer
    x = 127,900.71

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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.