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Finding the Fourth Proportional to 321,379.38, 482,101.02 and 119,029.65

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Solution

The fourth proportional to 321,379.38, 482,101.02 and 119,029.65 is: 178,556.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,379.38 : 482,101.02 = 119,029.65 : x
  2. Step 2: Convert to fraction form
    321,379.38/482,101.02 = 119,029.65/x
  3. Step 3: Cross multiply
    321,379.38x = 482,101.02 × 119,029.65
  4. Step 4: Simplify right side
    321,379.38x = 57,384,315,675.24
  5. Step 5: Solve for x
    x = 57,384,315,675.24/321,379.38
  6. Step 6: Final answer
    x = 178,556.31

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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.