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Finding the Fourth Proportional to 347.31, 479.50 and 249.17

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Solution

The fourth proportional to 347.31, 479.50 and 249.17 is: 344.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.31 : 479.50 = 249.17 : x
  2. Step 2: Convert to fraction form
    347.31/479.50 = 249.17/x
  3. Step 3: Cross multiply
    347.31x = 479.50 × 249.17
  4. Step 4: Simplify right side
    347.31x = 119,473.99
  5. Step 5: Solve for x
    x = 119,473.99/347.31
  6. Step 6: Final answer
    x = 344.00

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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.