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Finding the Fourth Proportional to 344,540.25, 475,339.59 and 208,524.78

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Solution

The fourth proportional to 344,540.25, 475,339.59 and 208,524.78 is: 287,687.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,540.25 : 475,339.59 = 208,524.78 : x
  2. Step 2: Convert to fraction form
    344,540.25/475,339.59 = 208,524.78/x
  3. Step 3: Cross multiply
    344,540.25x = 475,339.59 × 208,524.78
  4. Step 4: Simplify right side
    344,540.25x = 99,120,083,430.04
  5. Step 5: Solve for x
    x = 99,120,083,430.04/344,540.25
  6. Step 6: Final answer
    x = 287,687.97

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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.