Home / 312,939.12-469,601.42-123,367.23

Finding the Fourth Proportional to 312,939.12, 469,601.42 and 123,367.23

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Solution

The fourth proportional to 312,939.12, 469,601.42 and 123,367.23 is: 185,126.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,939.12 : 469,601.42 = 123,367.23 : x
  2. Step 2: Convert to fraction form
    312,939.12/469,601.42 = 123,367.23/x
  3. Step 3: Cross multiply
    312,939.12x = 469,601.42 × 123,367.23
  4. Step 4: Simplify right side
    312,939.12x = 57,933,425,772.63
  5. Step 5: Solve for x
    x = 57,933,425,772.63/312,939.12
  6. Step 6: Final answer
    x = 185,126.83

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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.