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Finding the Fourth Proportional to 306.31, 458.39 and 233.59

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Solution

The fourth proportional to 306.31, 458.39 and 233.59 is: 349.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    306.31 : 458.39 = 233.59 : x
  2. Step 2: Convert to fraction form
    306.31/458.39 = 233.59/x
  3. Step 3: Cross multiply
    306.31x = 458.39 × 233.59
  4. Step 4: Simplify right side
    306.31x = 107,074.15
  5. Step 5: Solve for x
    x = 107,074.15/306.31
  6. Step 6: Final answer
    x = 349.56

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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.