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Finding the Fourth Proportional to 329,329.55, 494,160.30 and 129,793.13

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Solution

The fourth proportional to 329,329.55, 494,160.30 and 129,793.13 is: 194,755.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,329.55 : 494,160.30 = 129,793.13 : x
  2. Step 2: Convert to fraction form
    329,329.55/494,160.30 = 129,793.13/x
  3. Step 3: Cross multiply
    329,329.55x = 494,160.30 × 129,793.13
  4. Step 4: Simplify right side
    329,329.55x = 64,138,609,587.94
  5. Step 5: Solve for x
    x = 64,138,609,587.94/329,329.55
  6. Step 6: Final answer
    x = 194,755.10

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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.