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Finding the Fourth Proportional to 347.41, 479.75 and 223.36

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Solution

The fourth proportional to 347.41, 479.75 and 223.36 is: 308.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.41 : 479.75 = 223.36 : x
  2. Step 2: Convert to fraction form
    347.41/479.75 = 223.36/x
  3. Step 3: Cross multiply
    347.41x = 479.75 × 223.36
  4. Step 4: Simplify right side
    347.41x = 107,154.64
  5. Step 5: Solve for x
    x = 107,154.64/347.41
  6. Step 6: Final answer
    x = 308.44

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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.