Home / 221,045.20-305,049.36-125,546.20

Finding the Fourth Proportional to 221,045.20, 305,049.36 and 125,546.20

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Solution

The fourth proportional to 221,045.20, 305,049.36 and 125,546.20 is: 173,257.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,045.20 : 305,049.36 = 125,546.20 : x
  2. Step 2: Convert to fraction form
    221,045.20/305,049.36 = 125,546.20/x
  3. Step 3: Cross multiply
    221,045.20x = 305,049.36 × 125,546.20
  4. Step 4: Simplify right side
    221,045.20x = 38,297,787,960.43
  5. Step 5: Solve for x
    x = 38,297,787,960.43/221,045.20
  6. Step 6: Final answer
    x = 173,257.72

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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.