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Finding the Fourth Proportional to 368.43, 552.10 and 231.09

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Solution

The fourth proportional to 368.43, 552.10 and 231.09 is: 346.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.43 : 552.10 = 231.09 : x
  2. Step 2: Convert to fraction form
    368.43/552.10 = 231.09/x
  3. Step 3: Cross multiply
    368.43x = 552.10 × 231.09
  4. Step 4: Simplify right side
    368.43x = 127,584.79
  5. Step 5: Solve for x
    x = 127,584.79/368.43
  6. Step 6: Final answer
    x = 346.29

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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.