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Finding the Fourth Proportional to 233.43, 350.55 and 215.12

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Solution

The fourth proportional to 233.43, 350.55 and 215.12 is: 323.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.43 : 350.55 = 215.12 : x
  2. Step 2: Convert to fraction form
    233.43/350.55 = 215.12/x
  3. Step 3: Cross multiply
    233.43x = 350.55 × 215.12
  4. Step 4: Simplify right side
    233.43x = 75,408.56
  5. Step 5: Solve for x
    x = 75,408.56/233.43
  6. Step 6: Final answer
    x = 323.05

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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.