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Finding the Fourth Proportional to 329,480.80, 494,221.20 and 196,511.20

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Solution

The fourth proportional to 329,480.80, 494,221.20 and 196,511.20 is: 294,766.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,480.80 : 494,221.20 = 196,511.20 : x
  2. Step 2: Convert to fraction form
    329,480.80/494,221.20 = 196,511.20/x
  3. Step 3: Cross multiply
    329,480.80x = 494,221.20 × 196,511.20
  4. Step 4: Simplify right side
    329,480.80x = 97,120,001,077.44
  5. Step 5: Solve for x
    x = 97,120,001,077.44/329,480.80
  6. Step 6: Final answer
    x = 294,766.80

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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.