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Finding the Fourth Proportional to 221,494.34, 331,957.20 and 192,914.30

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Solution

The fourth proportional to 221,494.34, 331,957.20 and 192,914.30 is: 289,123.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,494.34 : 331,957.20 = 192,914.30 : x
  2. Step 2: Convert to fraction form
    221,494.34/331,957.20 = 192,914.30/x
  3. Step 3: Cross multiply
    221,494.34x = 331,957.20 × 192,914.30
  4. Step 4: Simplify right side
    221,494.34x = 64,039,290,867.96
  5. Step 5: Solve for x
    x = 64,039,290,867.96/221,494.34
  6. Step 6: Final answer
    x = 289,123.83

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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.