Home / 225,887.06-311,671.82-135,208.56

Finding the Fourth Proportional to 225,887.06, 311,671.82 and 135,208.56

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Solution

The fourth proportional to 225,887.06, 311,671.82 and 135,208.56 is: 186,556.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,887.06 : 311,671.82 = 135,208.56 : x
  2. Step 2: Convert to fraction form
    225,887.06/311,671.82 = 135,208.56/x
  3. Step 3: Cross multiply
    225,887.06x = 311,671.82 × 135,208.56
  4. Step 4: Simplify right side
    225,887.06x = 42,140,697,974.78
  5. Step 5: Solve for x
    x = 42,140,697,974.78/225,887.06
  6. Step 6: Final answer
    x = 186,556.49

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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.