Home / 221,290.20-331,984.08-131,414.63

Finding the Fourth Proportional to 221,290.20, 331,984.08 and 131,414.63

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Solution

The fourth proportional to 221,290.20, 331,984.08 and 131,414.63 is: 197,150.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,290.20 : 331,984.08 = 131,414.63 : x
  2. Step 2: Convert to fraction form
    221,290.20/331,984.08 = 131,414.63/x
  3. Step 3: Cross multiply
    221,290.20x = 331,984.08 × 131,414.63
  4. Step 4: Simplify right side
    221,290.20x = 43,627,563,379.17
  5. Step 5: Solve for x
    x = 43,627,563,379.17/221,290.20
  6. Step 6: Final answer
    x = 197,150.91

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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.