Home / 207,649.44-311,500.22-81,273.38

Finding the Fourth Proportional to 207,649.44, 311,500.22 and 81,273.38

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Solution

The fourth proportional to 207,649.44, 311,500.22 and 81,273.38 is: 121,920.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,649.44 : 311,500.22 = 81,273.38 : x
  2. Step 2: Convert to fraction form
    207,649.44/311,500.22 = 81,273.38/x
  3. Step 3: Cross multiply
    207,649.44x = 311,500.22 × 81,273.38
  4. Step 4: Simplify right side
    207,649.44x = 25,316,673,786.28
  5. Step 5: Solve for x
    x = 25,316,673,786.28/207,649.44
  6. Step 6: Final answer
    x = 121,920.26

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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.