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Finding the Fourth Proportional to 329,983.80, 494,983.38 and 80,667.96

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Solution

The fourth proportional to 329,983.80, 494,983.38 and 80,667.96 is: 121,003.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,983.80 : 494,983.38 = 80,667.96 : x
  2. Step 2: Convert to fraction form
    329,983.80/494,983.38 = 80,667.96/x
  3. Step 3: Cross multiply
    329,983.80x = 494,983.38 × 80,667.96
  4. Step 4: Simplify right side
    329,983.80x = 39,929,299,498.50
  5. Step 5: Solve for x
    x = 39,929,299,498.50/329,983.80
  6. Step 6: Final answer
    x = 121,003.82

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.