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Finding the Fourth Proportional to 329,540.40, 494,310.60 and 298,047.60

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Solution

The fourth proportional to 329,540.40, 494,310.60 and 298,047.60 is: 447,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,540.40 : 494,310.60 = 298,047.60 : x
  2. Step 2: Convert to fraction form
    329,540.40/494,310.60 = 298,047.60/x
  3. Step 3: Cross multiply
    329,540.40x = 494,310.60 × 298,047.60
  4. Step 4: Simplify right side
    329,540.40x = 147,328,087,984.56
  5. Step 5: Solve for x
    x = 147,328,087,984.56/329,540.40
  6. Step 6: Final answer
    x = 447,071.40

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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.