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Finding the Fourth Proportional to 243.62, 363.43 and 235.41

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Solution

The fourth proportional to 243.62, 363.43 and 235.41 is: 351.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.62 : 363.43 = 235.41 : x
  2. Step 2: Convert to fraction form
    243.62/363.43 = 235.41/x
  3. Step 3: Cross multiply
    243.62x = 363.43 × 235.41
  4. Step 4: Simplify right side
    243.62x = 85,555.06
  5. Step 5: Solve for x
    x = 85,555.06/243.62
  6. Step 6: Final answer
    x = 351.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.