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Finding the Fourth Proportional to 339,410.20, 509,115.30 and 337,336.60

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Solution

The fourth proportional to 339,410.20, 509,115.30 and 337,336.60 is: 506,004.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,410.20 : 509,115.30 = 337,336.60 : x
  2. Step 2: Convert to fraction form
    339,410.20/509,115.30 = 337,336.60/x
  3. Step 3: Cross multiply
    339,410.20x = 509,115.30 × 337,336.60
  4. Step 4: Simplify right side
    339,410.20x = 171,743,224,309.98
  5. Step 5: Solve for x
    x = 171,743,224,309.98/339,410.20
  6. Step 6: Final answer
    x = 506,004.90

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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.