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Finding the Fourth Proportional to 253.31, 380.88 and 233.26

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Solution

The fourth proportional to 253.31, 380.88 and 233.26 is: 350.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.31 : 380.88 = 233.26 : x
  2. Step 2: Convert to fraction form
    253.31/380.88 = 233.26/x
  3. Step 3: Cross multiply
    253.31x = 380.88 × 233.26
  4. Step 4: Simplify right side
    253.31x = 88,843.12
  5. Step 5: Solve for x
    x = 88,843.12/253.31
  6. Step 6: Final answer
    x = 350.74

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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.