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Finding the Fourth Proportional to 339,610.16, 469,140.39 and 321,674.03

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Solution

The fourth proportional to 339,610.16, 469,140.39 and 321,674.03 is: 444,363.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,610.16 : 469,140.39 = 321,674.03 : x
  2. Step 2: Convert to fraction form
    339,610.16/469,140.39 = 321,674.03/x
  3. Step 3: Cross multiply
    339,610.16x = 469,140.39 × 321,674.03
  4. Step 4: Simplify right side
    339,610.16x = 150,910,279,300.65
  5. Step 5: Solve for x
    x = 150,910,279,300.65/339,610.16
  6. Step 6: Final answer
    x = 444,363.26

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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.