Home / 220,181.10-329,615.55-131,388.90

Finding the Fourth Proportional to 220,181.10, 329,615.55 and 131,388.90

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Solution

The fourth proportional to 220,181.10, 329,615.55 and 131,388.90 is: 196,691.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,181.10 : 329,615.55 = 131,388.90 : x
  2. Step 2: Convert to fraction form
    220,181.10/329,615.55 = 131,388.90/x
  3. Step 3: Cross multiply
    220,181.10x = 329,615.55 × 131,388.90
  4. Step 4: Simplify right side
    220,181.10x = 43,307,824,537.40
  5. Step 5: Solve for x
    x = 43,307,824,537.40/220,181.10
  6. Step 6: Final answer
    x = 196,691.83

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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.