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Finding the Fourth Proportional to 347.58, 480.29 and 249.17

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Solution

The fourth proportional to 347.58, 480.29 and 249.17 is: 344.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.58 : 480.29 = 249.17 : x
  2. Step 2: Convert to fraction form
    347.58/480.29 = 249.17/x
  3. Step 3: Cross multiply
    347.58x = 480.29 × 249.17
  4. Step 4: Simplify right side
    347.58x = 119,673.86
  5. Step 5: Solve for x
    x = 119,673.86/347.58
  6. Step 6: Final answer
    x = 344.31

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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.