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Finding the Fourth Proportional to 319.96, 481.93 and 235

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Solution

The fourth proportional to 319.96, 481.93 and 235 is: 353.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    319.96 : 481.93 = 235 : x
  2. Step 2: Convert to fraction form
    319.96/481.93 = 235/x
  3. Step 3: Cross multiply
    319.96x = 481.93 × 235
  4. Step 4: Simplify right side
    319.96x = 113,253.55
  5. Step 5: Solve for x
    x = 113,253.55/319.96
  6. Step 6: Final answer
    x = 353.96

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.