Home / 312,939.37-469,601.79-123,367.48

Finding the Fourth Proportional to 312,939.37, 469,601.79 and 123,367.48

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Solution

The fourth proportional to 312,939.37, 469,601.79 and 123,367.48 is: 185,127.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,939.37 : 469,601.79 = 123,367.48 : x
  2. Step 2: Convert to fraction form
    312,939.37/469,601.79 = 123,367.48/x
  3. Step 3: Cross multiply
    312,939.37x = 469,601.79 × 123,367.48
  4. Step 4: Simplify right side
    312,939.37x = 57,933,589,435.79
  5. Step 5: Solve for x
    x = 57,933,589,435.79/312,939.37
  6. Step 6: Final answer
    x = 185,127.20

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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.