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Finding the Fourth Proportional to 604.25, 905.86 and 295.91

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Solution

The fourth proportional to 604.25, 905.86 and 295.91 is: 443.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.25 : 905.86 = 295.91 : x
  2. Step 2: Convert to fraction form
    604.25/905.86 = 295.91/x
  3. Step 3: Cross multiply
    604.25x = 905.86 × 295.91
  4. Step 4: Simplify right side
    604.25x = 268,053.03
  5. Step 5: Solve for x
    x = 268,053.03/604.25
  6. Step 6: Final answer
    x = 443.61

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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.