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Finding the Fourth Proportional to 242.96, 362.82 and 230.48

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Solution

The fourth proportional to 242.96, 362.82 and 230.48 is: 344.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.96 : 362.82 = 230.48 : x
  2. Step 2: Convert to fraction form
    242.96/362.82 = 230.48/x
  3. Step 3: Cross multiply
    242.96x = 362.82 × 230.48
  4. Step 4: Simplify right side
    242.96x = 83,622.75
  5. Step 5: Solve for x
    x = 83,622.75/242.96
  6. Step 6: Final answer
    x = 344.18

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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.