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Finding the Fourth Proportional to 221,452.38, 332,128.89 and 63,645.66

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Solution

The fourth proportional to 221,452.38, 332,128.89 and 63,645.66 is: 95,454.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,452.38 : 332,128.89 = 63,645.66 : x
  2. Step 2: Convert to fraction form
    221,452.38/332,128.89 = 63,645.66/x
  3. Step 3: Cross multiply
    221,452.38x = 332,128.89 × 63,645.66
  4. Step 4: Simplify right side
    221,452.38x = 21,138,562,409.12
  5. Step 5: Solve for x
    x = 21,138,562,409.12/221,452.38
  6. Step 6: Final answer
    x = 95,454.21

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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.