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Finding the Fourth Proportional to 665.17, 997.76 and 232.33

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Solution

The fourth proportional to 665.17, 997.76 and 232.33 is: 348.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    665.17 : 997.76 = 232.33 : x
  2. Step 2: Convert to fraction form
    665.17/997.76 = 232.33/x
  3. Step 3: Cross multiply
    665.17x = 997.76 × 232.33
  4. Step 4: Simplify right side
    665.17x = 231,805.92
  5. Step 5: Solve for x
    x = 231,805.92/665.17
  6. Step 6: Final answer
    x = 348.49

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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.