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Finding the Fourth Proportional to 285,767.46, 394,279.29 and 225,149.94

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Solution

The fourth proportional to 285,767.46, 394,279.29 and 225,149.94 is: 310,644.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,767.46 : 394,279.29 = 225,149.94 : x
  2. Step 2: Convert to fraction form
    285,767.46/394,279.29 = 225,149.94/x
  3. Step 3: Cross multiply
    285,767.46x = 394,279.29 × 225,149.94
  4. Step 4: Simplify right side
    285,767.46x = 88,771,958,486.74
  5. Step 5: Solve for x
    x = 88,771,958,486.74/285,767.46
  6. Step 6: Final answer
    x = 310,644.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.