Home / 219,486.20-329,229.30-131,012.60

Finding the Fourth Proportional to 219,486.20, 329,229.30 and 131,012.60

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Solution

The fourth proportional to 219,486.20, 329,229.30 and 131,012.60 is: 196,518.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,486.20 : 329,229.30 = 131,012.60 : x
  2. Step 2: Convert to fraction form
    219,486.20/329,229.30 = 131,012.60/x
  3. Step 3: Cross multiply
    219,486.20x = 329,229.30 × 131,012.60
  4. Step 4: Simplify right side
    219,486.20x = 43,133,186,589.18
  5. Step 5: Solve for x
    x = 43,133,186,589.18/219,486.20
  6. Step 6: Final answer
    x = 196,518.90

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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.