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Finding the Fourth Proportional to 341.31, 471.39 and 231.24

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Solution

The fourth proportional to 341.31, 471.39 and 231.24 is: 319.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.31 : 471.39 = 231.24 : x
  2. Step 2: Convert to fraction form
    341.31/471.39 = 231.24/x
  3. Step 3: Cross multiply
    341.31x = 471.39 × 231.24
  4. Step 4: Simplify right side
    341.31x = 109,004.22
  5. Step 5: Solve for x
    x = 109,004.22/341.31
  6. Step 6: Final answer
    x = 319.37

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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.