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Finding the Fourth Proportional to 339,091.76, 467,930.04 and 203,131.28

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Solution

The fourth proportional to 339,091.76, 467,930.04 and 203,131.28 is: 280,311.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,091.76 : 467,930.04 = 203,131.28 : x
  2. Step 2: Convert to fraction form
    339,091.76/467,930.04 = 203,131.28/x
  3. Step 3: Cross multiply
    339,091.76x = 467,930.04 × 203,131.28
  4. Step 4: Simplify right side
    339,091.76x = 95,051,227,975.65
  5. Step 5: Solve for x
    x = 95,051,227,975.65/339,091.76
  6. Step 6: Final answer
    x = 280,311.23

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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.