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Finding the Fourth Proportional to 207,737.09, 311,488.72 and 65,555.87

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Solution

The fourth proportional to 207,737.09, 311,488.72 and 65,555.87 is: 98,296.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,737.09 : 311,488.72 = 65,555.87 : x
  2. Step 2: Convert to fraction form
    207,737.09/311,488.72 = 65,555.87/x
  3. Step 3: Cross multiply
    207,737.09x = 311,488.72 × 65,555.87
  4. Step 4: Simplify right side
    207,737.09x = 20,419,914,034.79
  5. Step 5: Solve for x
    x = 20,419,914,034.79/207,737.09
  6. Step 6: Final answer
    x = 98,296.91

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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.