Home / 221,454.20-331,841.10-165,029.60

Finding the Fourth Proportional to 221,454.20, 331,841.10 and 165,029.60

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Solution

The fourth proportional to 221,454.20, 331,841.10 and 165,029.60 is: 247,290.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,454.20 : 331,841.10 = 165,029.60 : x
  2. Step 2: Convert to fraction form
    221,454.20/331,841.10 = 165,029.60/x
  3. Step 3: Cross multiply
    221,454.20x = 331,841.10 × 165,029.60
  4. Step 4: Simplify right side
    221,454.20x = 54,763,603,996.56
  5. Step 5: Solve for x
    x = 54,763,603,996.56/221,454.20
  6. Step 6: Final answer
    x = 247,290.88

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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.