Home / 225,975.09-311,991.71-140,025.28

Finding the Fourth Proportional to 225,975.09, 311,991.71 and 140,025.28

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Solution

The fourth proportional to 225,975.09, 311,991.71 and 140,025.28 is: 193,325.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,975.09 : 311,991.71 = 140,025.28 : x
  2. Step 2: Convert to fraction form
    225,975.09/311,991.71 = 140,025.28/x
  3. Step 3: Cross multiply
    225,975.09x = 311,991.71 × 140,025.28
  4. Step 4: Simplify right side
    225,975.09x = 43,686,726,765.39
  5. Step 5: Solve for x
    x = 43,686,726,765.39/225,975.09
  6. Step 6: Final answer
    x = 193,325.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.