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Finding the Fourth Proportional to 221,672.31, 332,555.23 and 71,900.97

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Solution

The fourth proportional to 221,672.31, 332,555.23 and 71,900.97 is: 107,866.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,672.31 : 332,555.23 = 71,900.97 : x
  2. Step 2: Convert to fraction form
    221,672.31/332,555.23 = 71,900.97/x
  3. Step 3: Cross multiply
    221,672.31x = 332,555.23 × 71,900.97
  4. Step 4: Simplify right side
    221,672.31x = 23,911,043,615.57
  5. Step 5: Solve for x
    x = 23,911,043,615.57/221,672.31
  6. Step 6: Final answer
    x = 107,866.62

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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.