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Finding the Fourth Proportional to 221,446.70, 332,170.05 and 205,700.30

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Solution

The fourth proportional to 221,446.70, 332,170.05 and 205,700.30 is: 308,550.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,446.70 : 332,170.05 = 205,700.30 : x
  2. Step 2: Convert to fraction form
    221,446.70/332,170.05 = 205,700.30/x
  3. Step 3: Cross multiply
    221,446.70x = 332,170.05 × 205,700.30
  4. Step 4: Simplify right side
    221,446.70x = 68,327,478,936.02
  5. Step 5: Solve for x
    x = 68,327,478,936.02/221,446.70
  6. Step 6: Final answer
    x = 308,550.45

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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.