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Finding the Fourth Proportional to 221,672.10, 332,508.15 and 133,025.70

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Solution

The fourth proportional to 221,672.10, 332,508.15 and 133,025.70 is: 199,538.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,672.10 : 332,508.15 = 133,025.70 : x
  2. Step 2: Convert to fraction form
    221,672.10/332,508.15 = 133,025.70/x
  3. Step 3: Cross multiply
    221,672.10x = 332,508.15 × 133,025.70
  4. Step 4: Simplify right side
    221,672.10x = 44,232,129,409.46
  5. Step 5: Solve for x
    x = 44,232,129,409.46/221,672.10
  6. Step 6: Final answer
    x = 199,538.55

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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.