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Finding the Fourth Proportional to 328,993.88, 493,508.85 and 104,338.05

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Solution

The fourth proportional to 328,993.88, 493,508.85 and 104,338.05 is: 156,512.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,993.88 : 493,508.85 = 104,338.05 : x
  2. Step 2: Convert to fraction form
    328,993.88/493,508.85 = 104,338.05/x
  3. Step 3: Cross multiply
    328,993.88x = 493,508.85 × 104,338.05
  4. Step 4: Simplify right side
    328,993.88x = 51,491,750,545.05
  5. Step 5: Solve for x
    x = 51,491,750,545.05/328,993.88
  6. Step 6: Final answer
    x = 156,512.79

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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.