Home / 225,677.04-311,422.32-130,178.04

Finding the Fourth Proportional to 225,677.04, 311,422.32 and 130,178.04

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Solution

The fourth proportional to 225,677.04, 311,422.32 and 130,178.04 is: 179,638.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,677.04 : 311,422.32 = 130,178.04 : x
  2. Step 2: Convert to fraction form
    225,677.04/311,422.32 = 130,178.04/x
  3. Step 3: Cross multiply
    225,677.04x = 311,422.32 × 130,178.04
  4. Step 4: Simplify right side
    225,677.04x = 40,540,347,229.85
  5. Step 5: Solve for x
    x = 40,540,347,229.85/225,677.04
  6. Step 6: Final answer
    x = 179,638.78

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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.