Home / 221,575.91-305,738.70-130,919.27

Finding the Fourth Proportional to 221,575.91, 305,738.70 and 130,919.27

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Solution

The fourth proportional to 221,575.91, 305,738.70 and 130,919.27 is: 180,647.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,575.91 : 305,738.70 = 130,919.27 : x
  2. Step 2: Convert to fraction form
    221,575.91/305,738.70 = 130,919.27/x
  3. Step 3: Cross multiply
    221,575.91x = 305,738.70 × 130,919.27
  4. Step 4: Simplify right side
    221,575.91x = 40,027,087,414.75
  5. Step 5: Solve for x
    x = 40,027,087,414.75/221,575.91
  6. Step 6: Final answer
    x = 180,647.29

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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.