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Finding the Fourth Proportional to 443.58, 665.37 and 224.33

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Solution

The fourth proportional to 443.58, 665.37 and 224.33 is: 336.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    443.58 : 665.37 = 224.33 : x
  2. Step 2: Convert to fraction form
    443.58/665.37 = 224.33/x
  3. Step 3: Cross multiply
    443.58x = 665.37 × 224.33
  4. Step 4: Simplify right side
    443.58x = 149,259.13
  5. Step 5: Solve for x
    x = 149,259.13/443.58
  6. Step 6: Final answer
    x = 336.49

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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.