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Finding the Fourth Proportional to 408,283.85, 612,550.34 and 208,744.37

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Solution

The fourth proportional to 408,283.85, 612,550.34 and 208,744.37 is: 313,180.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,283.85 : 612,550.34 = 208,744.37 : x
  2. Step 2: Convert to fraction form
    408,283.85/612,550.34 = 208,744.37/x
  3. Step 3: Cross multiply
    408,283.85x = 612,550.34 × 208,744.37
  4. Step 4: Simplify right side
    408,283.85x = 127,866,431,773.62
  5. Step 5: Solve for x
    x = 127,866,431,773.62/408,283.85
  6. Step 6: Final answer
    x = 313,180.23

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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.