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Finding the Fourth Proportional to 329,509.29, 494,263.98 and 80,191.29

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Solution

The fourth proportional to 329,509.29, 494,263.98 and 80,191.29 is: 120,286.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,509.29 : 494,263.98 = 80,191.29 : x
  2. Step 2: Convert to fraction form
    329,509.29/494,263.98 = 80,191.29/x
  3. Step 3: Cross multiply
    329,509.29x = 494,263.98 × 80,191.29
  4. Step 4: Simplify right side
    329,509.29x = 39,635,666,156.73
  5. Step 5: Solve for x
    x = 39,635,666,156.73/329,509.29
  6. Step 6: Final answer
    x = 120,286.95

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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.