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Finding the Fourth Proportional to 199,178.46, 298,657.44 and 79,113.78

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Solution

The fourth proportional to 199,178.46, 298,657.44 and 79,113.78 is: 118,626.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,178.46 : 298,657.44 = 79,113.78 : x
  2. Step 2: Convert to fraction form
    199,178.46/298,657.44 = 79,113.78/x
  3. Step 3: Cross multiply
    199,178.46x = 298,657.44 × 79,113.78
  4. Step 4: Simplify right side
    199,178.46x = 23,627,919,003.52
  5. Step 5: Solve for x
    x = 23,627,919,003.52/199,178.46
  6. Step 6: Final answer
    x = 118,626.88

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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.