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Finding the Fourth Proportional to 464.36, 640.82 and 333.61

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Solution

The fourth proportional to 464.36, 640.82 and 333.61 is: 460.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.36 : 640.82 = 333.61 : x
  2. Step 2: Convert to fraction form
    464.36/640.82 = 333.61/x
  3. Step 3: Cross multiply
    464.36x = 640.82 × 333.61
  4. Step 4: Simplify right side
    464.36x = 213,783.19
  5. Step 5: Solve for x
    x = 213,783.19/464.36
  6. Step 6: Final answer
    x = 460.39

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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.