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Finding the Fourth Proportional to 221,406.10, 332,109.15 and 132,613.90

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Solution

The fourth proportional to 221,406.10, 332,109.15 and 132,613.90 is: 198,920.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,406.10 : 332,109.15 = 132,613.90 : x
  2. Step 2: Convert to fraction form
    221,406.10/332,109.15 = 132,613.90/x
  3. Step 3: Cross multiply
    221,406.10x = 332,109.15 × 132,613.90
  4. Step 4: Simplify right side
    221,406.10x = 44,042,289,607.19
  5. Step 5: Solve for x
    x = 44,042,289,607.19/221,406.10
  6. Step 6: Final answer
    x = 198,920.85

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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.