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Finding the Fourth Proportional to 221,432.29, 332,201.16 and 71,672.60

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Solution

The fourth proportional to 221,432.29, 332,201.16 and 71,672.60 is: 107,525.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,432.29 : 332,201.16 = 71,672.60 : x
  2. Step 2: Convert to fraction form
    221,432.29/332,201.16 = 71,672.60/x
  3. Step 3: Cross multiply
    221,432.29x = 332,201.16 × 71,672.60
  4. Step 4: Simplify right side
    221,432.29x = 23,809,720,501.85
  5. Step 5: Solve for x
    x = 23,809,720,501.85/221,432.29
  6. Step 6: Final answer
    x = 107,525.97

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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.