Home / 221,408.20-332,238.66-120,281.32

Finding the Fourth Proportional to 221,408.20, 332,238.66 and 120,281.32

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Solution

The fourth proportional to 221,408.20, 332,238.66 and 120,281.32 is: 180,490.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,408.20 : 332,238.66 = 120,281.32 : x
  2. Step 2: Convert to fraction form
    221,408.20/332,238.66 = 120,281.32/x
  3. Step 3: Cross multiply
    221,408.20x = 332,238.66 × 120,281.32
  4. Step 4: Simplify right side
    221,408.20x = 39,962,104,579.83
  5. Step 5: Solve for x
    x = 39,962,104,579.83/221,408.20
  6. Step 6: Final answer
    x = 180,490.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.