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Finding the Fourth Proportional to 329,631.60, 494,101.80 and 129,874.80

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Solution

The fourth proportional to 329,631.60, 494,101.80 and 129,874.80 is: 194,676.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,631.60 : 494,101.80 = 129,874.80 : x
  2. Step 2: Convert to fraction form
    329,631.60/494,101.80 = 129,874.80/x
  3. Step 3: Cross multiply
    329,631.60x = 494,101.80 × 129,874.80
  4. Step 4: Simplify right side
    329,631.60x = 64,171,372,454.64
  5. Step 5: Solve for x
    x = 64,171,372,454.64/329,631.60
  6. Step 6: Final answer
    x = 194,676.03

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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.