Home / 225,447.03-311,046.48-129,940.74

Finding the Fourth Proportional to 225,447.03, 311,046.48 and 129,940.74

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Solution

The fourth proportional to 225,447.03, 311,046.48 and 129,940.74 is: 179,277.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,447.03 : 311,046.48 = 129,940.74 : x
  2. Step 2: Convert to fraction form
    225,447.03/311,046.48 = 129,940.74/x
  3. Step 3: Cross multiply
    225,447.03x = 311,046.48 × 129,940.74
  4. Step 4: Simplify right side
    225,447.03x = 40,417,609,785.60
  5. Step 5: Solve for x
    x = 40,417,609,785.60/225,447.03
  6. Step 6: Final answer
    x = 179,277.63

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1.5x scale

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.