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Finding the Fourth Proportional to 221,451.10, 332,176.65 and 217,563.10

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Solution

The fourth proportional to 221,451.10, 332,176.65 and 217,563.10 is: 326,344.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,451.10 : 332,176.65 = 217,563.10 : x
  2. Step 2: Convert to fraction form
    221,451.10/332,176.65 = 217,563.10/x
  3. Step 3: Cross multiply
    221,451.10x = 332,176.65 × 217,563.10
  4. Step 4: Simplify right side
    221,451.10x = 72,269,381,721.62
  5. Step 5: Solve for x
    x = 72,269,381,721.62/221,451.10
  6. Step 6: Final answer
    x = 326,344.65

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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.