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Finding the Fourth Proportional to 218,793.80, 328,190.70 and 218,793.80

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Solution

The fourth proportional to 218,793.80, 328,190.70 and 218,793.80 is: 328,190.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,793.80 : 328,190.70 = 218,793.80 : x
  2. Step 2: Convert to fraction form
    218,793.80/328,190.70 = 218,793.80/x
  3. Step 3: Cross multiply
    218,793.80x = 328,190.70 × 218,793.80
  4. Step 4: Simplify right side
    218,793.80x = 71,806,090,377.66
  5. Step 5: Solve for x
    x = 71,806,090,377.66/218,793.80
  6. Step 6: Final answer
    x = 328,190.70

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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.