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Finding the Fourth Proportional to 341.88, 470.79 and 331.35

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Solution

The fourth proportional to 341.88, 470.79 and 331.35 is: 456.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.88 : 470.79 = 331.35 : x
  2. Step 2: Convert to fraction form
    341.88/470.79 = 331.35/x
  3. Step 3: Cross multiply
    341.88x = 470.79 × 331.35
  4. Step 4: Simplify right side
    341.88x = 155,996.27
  5. Step 5: Solve for x
    x = 155,996.27/341.88
  6. Step 6: Final answer
    x = 456.29

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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.