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Finding the Fourth Proportional to 221,441.70, 332,211.15 and 109,175.70

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Solution

The fourth proportional to 221,441.70, 332,211.15 and 109,175.70 is: 163,787.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,441.70 : 332,211.15 = 109,175.70 : x
  2. Step 2: Convert to fraction form
    221,441.70/332,211.15 = 109,175.70/x
  3. Step 3: Cross multiply
    221,441.70x = 332,211.15 × 109,175.70
  4. Step 4: Simplify right side
    221,441.70x = 36,269,384,849.06
  5. Step 5: Solve for x
    x = 36,269,384,849.06/221,441.70
  6. Step 6: Final answer
    x = 163,787.51

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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.