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Finding the Fourth Proportional to 329,674.17, 494,714.30 and 129,960.57

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Solution

The fourth proportional to 329,674.17, 494,714.30 and 129,960.57 is: 195,020.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,674.17 : 494,714.30 = 129,960.57 : x
  2. Step 2: Convert to fraction form
    329,674.17/494,714.30 = 129,960.57/x
  3. Step 3: Cross multiply
    329,674.17x = 494,714.30 × 129,960.57
  4. Step 4: Simplify right side
    329,674.17x = 64,293,351,765.35
  5. Step 5: Solve for x
    x = 64,293,351,765.35/329,674.17
  6. Step 6: Final answer
    x = 195,020.90

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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.