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Finding the Fourth Proportional to 329,672.42, 494,711.67 and 129,958.82

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Solution

The fourth proportional to 329,672.42, 494,711.67 and 129,958.82 is: 195,018.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,672.42 : 494,711.67 = 129,958.82 : x
  2. Step 2: Convert to fraction form
    329,672.42/494,711.67 = 129,958.82/x
  3. Step 3: Cross multiply
    329,672.42x = 494,711.67 × 129,958.82
  4. Step 4: Simplify right side
    329,672.42x = 64,292,144,873.43
  5. Step 5: Solve for x
    x = 64,292,144,873.43/329,672.42
  6. Step 6: Final answer
    x = 195,018.27

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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.