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Finding the Fourth Proportional to 243.43, 337.48 and 230.94

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Solution

The fourth proportional to 243.43, 337.48 and 230.94 is: 320.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.43 : 337.48 = 230.94 : x
  2. Step 2: Convert to fraction form
    243.43/337.48 = 230.94/x
  3. Step 3: Cross multiply
    243.43x = 337.48 × 230.94
  4. Step 4: Simplify right side
    243.43x = 77,937.05
  5. Step 5: Solve for x
    x = 77,937.05/243.43
  6. Step 6: Final answer
    x = 320.17

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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.