Home / 221,229.20-331,584.60-165,760.40

Finding the Fourth Proportional to 221,229.20, 331,584.60 and 165,760.40

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Solution

The fourth proportional to 221,229.20, 331,584.60 and 165,760.40 is: 248,446.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,229.20 : 331,584.60 = 165,760.40 : x
  2. Step 2: Convert to fraction form
    221,229.20/331,584.60 = 165,760.40/x
  3. Step 3: Cross multiply
    221,229.20x = 331,584.60 × 165,760.40
  4. Step 4: Simplify right side
    221,229.20x = 54,963,595,929.84
  5. Step 5: Solve for x
    x = 54,963,595,929.84/221,229.20
  6. Step 6: Final answer
    x = 248,446.39

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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.