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Finding the Fourth Proportional to 329,317.82, 494,142.57 and 129,781.41

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Solution

The fourth proportional to 329,317.82, 494,142.57 and 129,781.41 is: 194,737.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,317.82 : 494,142.57 = 129,781.41 : x
  2. Step 2: Convert to fraction form
    329,317.82/494,142.57 = 129,781.41/x
  3. Step 3: Cross multiply
    329,317.82x = 494,142.57 × 129,781.41
  4. Step 4: Simplify right side
    329,317.82x = 64,130,519,475.62
  5. Step 5: Solve for x
    x = 64,130,519,475.62/329,317.82
  6. Step 6: Final answer
    x = 194,737.47

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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.