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Finding the Fourth Proportional to 341.92, 471.56 and 231.22

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Solution

The fourth proportional to 341.92, 471.56 and 231.22 is: 318.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.92 : 471.56 = 231.22 : x
  2. Step 2: Convert to fraction form
    341.92/471.56 = 231.22/x
  3. Step 3: Cross multiply
    341.92x = 471.56 × 231.22
  4. Step 4: Simplify right side
    341.92x = 109,033.50
  5. Step 5: Solve for x
    x = 109,033.50/341.92
  6. Step 6: Final answer
    x = 318.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.