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Finding the Fourth Proportional to 207,375.01, 311,150 and 123,295.80

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Solution

The fourth proportional to 207,375.01, 311,150 and 123,295.80 is: 184,995.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,375.01 : 311,150 = 123,295.80 : x
  2. Step 2: Convert to fraction form
    207,375.01/311,150 = 123,295.80/x
  3. Step 3: Cross multiply
    207,375.01x = 311,150 × 123,295.80
  4. Step 4: Simplify right side
    207,375.01x = 38,363,488,170
  5. Step 5: Solve for x
    x = 38,363,488,170/207,375.01
  6. Step 6: Final answer
    x = 184,995.71

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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.