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Finding the Fourth Proportional to 339,490.44, 508,273.38 and 282,103.56

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Solution

The fourth proportional to 339,490.44, 508,273.38 and 282,103.56 is: 422,355.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,490.44 : 508,273.38 = 282,103.56 : x
  2. Step 2: Convert to fraction form
    339,490.44/508,273.38 = 282,103.56/x
  3. Step 3: Cross multiply
    339,490.44x = 508,273.38 × 282,103.56
  4. Step 4: Simplify right side
    339,490.44x = 143,385,729,951.23
  5. Step 5: Solve for x
    x = 143,385,729,951.23/339,490.44
  6. Step 6: Final answer
    x = 422,355.72

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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.