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Finding the Fourth Proportional to 251,684.60, 377,138.10 and 218,247.80

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Solution

The fourth proportional to 251,684.60, 377,138.10 and 218,247.80 is: 327,034.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,684.60 : 377,138.10 = 218,247.80 : x
  2. Step 2: Convert to fraction form
    251,684.60/377,138.10 = 218,247.80/x
  3. Step 3: Cross multiply
    251,684.60x = 377,138.10 × 218,247.80
  4. Step 4: Simplify right side
    251,684.60x = 82,309,560,621.18
  5. Step 5: Solve for x
    x = 82,309,560,621.18/251,684.60
  6. Step 6: Final answer
    x = 327,034.55

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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.