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Finding the Fourth Proportional to 339,884.85, 509,794.11 and 103,229.58

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Solution

The fourth proportional to 339,884.85, 509,794.11 and 103,229.58 is: 154,834.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,884.85 : 509,794.11 = 103,229.58 : x
  2. Step 2: Convert to fraction form
    339,884.85/509,794.11 = 103,229.58/x
  3. Step 3: Cross multiply
    339,884.85x = 509,794.11 × 103,229.58
  4. Step 4: Simplify right side
    339,884.85x = 52,625,831,861.77
  5. Step 5: Solve for x
    x = 52,625,831,861.77/339,884.85
  6. Step 6: Final answer
    x = 154,834.30

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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.