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Finding the Fourth Proportional to 207,049.50, 310,589.09 and 55,245.78

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Solution

The fourth proportional to 207,049.50, 310,589.09 and 55,245.78 is: 82,872.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,049.50 : 310,589.09 = 55,245.78 : x
  2. Step 2: Convert to fraction form
    207,049.50/310,589.09 = 55,245.78/x
  3. Step 3: Cross multiply
    207,049.50x = 310,589.09 × 55,245.78
  4. Step 4: Simplify right side
    207,049.50x = 17,158,736,536.54
  5. Step 5: Solve for x
    x = 17,158,736,536.54/207,049.50
  6. Step 6: Final answer
    x = 82,872.63

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.