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Finding the Fourth Proportional to 339,996.60, 510,120.45 and 140,334.30

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Solution

The fourth proportional to 339,996.60, 510,120.45 and 140,334.30 is: 210,553.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,996.60 : 510,120.45 = 140,334.30 : x
  2. Step 2: Convert to fraction form
    339,996.60/510,120.45 = 140,334.30/x
  3. Step 3: Cross multiply
    339,996.60x = 510,120.45 × 140,334.30
  4. Step 4: Simplify right side
    339,996.60x = 71,587,396,266.44
  5. Step 5: Solve for x
    x = 71,587,396,266.44/339,996.60
  6. Step 6: Final answer
    x = 210,553.27

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1.5x scale

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.