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Finding the Fourth Proportional to 221,092.92, 331,639.38 and 54,880.92

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Solution

The fourth proportional to 221,092.92, 331,639.38 and 54,880.92 is: 82,321.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,092.92 : 331,639.38 = 54,880.92 : x
  2. Step 2: Convert to fraction form
    221,092.92/331,639.38 = 54,880.92/x
  3. Step 3: Cross multiply
    221,092.92x = 331,639.38 × 54,880.92
  4. Step 4: Simplify right side
    221,092.92x = 18,200,674,282.63
  5. Step 5: Solve for x
    x = 18,200,674,282.63/221,092.92
  6. Step 6: Final answer
    x = 82,321.38

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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.