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Finding the Fourth Proportional to 445.59, 613.94 and 333.09

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Solution

The fourth proportional to 445.59, 613.94 and 333.09 is: 458.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.59 : 613.94 = 333.09 : x
  2. Step 2: Convert to fraction form
    445.59/613.94 = 333.09/x
  3. Step 3: Cross multiply
    445.59x = 613.94 × 333.09
  4. Step 4: Simplify right side
    445.59x = 204,495.61
  5. Step 5: Solve for x
    x = 204,495.61/445.59
  6. Step 6: Final answer
    x = 458.93

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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.