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Finding the Fourth Proportional to 339,760.80, 468,896.16 and 203,800.08

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Solution

The fourth proportional to 339,760.80, 468,896.16 and 203,800.08 is: 281,259.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,760.80 : 468,896.16 = 203,800.08 : x
  2. Step 2: Convert to fraction form
    339,760.80/468,896.16 = 203,800.08/x
  3. Step 3: Cross multiply
    339,760.80x = 468,896.16 × 203,800.08
  4. Step 4: Simplify right side
    339,760.80x = 95,561,074,919.69
  5. Step 5: Solve for x
    x = 95,561,074,919.69/339,760.80
  6. Step 6: Final answer
    x = 281,259.86

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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.