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Finding the Fourth Proportional to 329,504.79, 494,257.23 and 80,186.79

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Solution

The fourth proportional to 329,504.79, 494,257.23 and 80,186.79 is: 120,280.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,504.79 : 494,257.23 = 80,186.79 : x
  2. Step 2: Convert to fraction form
    329,504.79/494,257.23 = 80,186.79/x
  3. Step 3: Cross multiply
    329,504.79x = 494,257.23 × 80,186.79
  4. Step 4: Simplify right side
    329,504.79x = 39,632,900,707.99
  5. Step 5: Solve for x
    x = 39,632,900,707.99/329,504.79
  6. Step 6: Final answer
    x = 120,280.20

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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.