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Finding the Fourth Proportional to 455,319.30, 682,404.68 and 230,736.26

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Solution

The fourth proportional to 455,319.30, 682,404.68 and 230,736.26 is: 345,813.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,319.30 : 682,404.68 = 230,736.26 : x
  2. Step 2: Convert to fraction form
    455,319.30/682,404.68 = 230,736.26/x
  3. Step 3: Cross multiply
    455,319.30x = 682,404.68 × 230,736.26
  4. Step 4: Simplify right side
    455,319.30x = 157,455,503,669.70
  5. Step 5: Solve for x
    x = 157,455,503,669.70/455,319.30
  6. Step 6: Final answer
    x = 345,813.37

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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.