Home / 225,508.73-311,084.06-139,440.20

Finding the Fourth Proportional to 225,508.73, 311,084.06 and 139,440.20

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Solution

The fourth proportional to 225,508.73, 311,084.06 and 139,440.20 is: 192,354.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,508.73 : 311,084.06 = 139,440.20 : x
  2. Step 2: Convert to fraction form
    225,508.73/311,084.06 = 139,440.20/x
  3. Step 3: Cross multiply
    225,508.73x = 311,084.06 × 139,440.20
  4. Step 4: Simplify right side
    225,508.73x = 43,377,621,290.59
  5. Step 5: Solve for x
    x = 43,377,621,290.59/225,508.73
  6. Step 6: Final answer
    x = 192,354.51

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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.