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Finding the Fourth Proportional to 343,857.76, 515,115.68 and 225,169.27

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Solution

The fourth proportional to 343,857.76, 515,115.68 and 225,169.27 is: 337,314.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,857.76 : 515,115.68 = 225,169.27 : x
  2. Step 2: Convert to fraction form
    343,857.76/515,115.68 = 225,169.27/x
  3. Step 3: Cross multiply
    343,857.76x = 515,115.68 × 225,169.27
  4. Step 4: Simplify right side
    343,857.76x = 115,988,219,217.52
  5. Step 5: Solve for x
    x = 115,988,219,217.52/343,857.76
  6. Step 6: Final answer
    x = 337,314.53

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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.