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Finding the Fourth Proportional to 243.57, 337.82 and 235.33

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Solution

The fourth proportional to 243.57, 337.82 and 235.33 is: 326.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.57 : 337.82 = 235.33 : x
  2. Step 2: Convert to fraction form
    243.57/337.82 = 235.33/x
  3. Step 3: Cross multiply
    243.57x = 337.82 × 235.33
  4. Step 4: Simplify right side
    243.57x = 79,499.18
  5. Step 5: Solve for x
    x = 79,499.18/243.57
  6. Step 6: Final answer
    x = 326.39

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.