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Finding the Fourth Proportional to 347.07, 520.17 and 223.41

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Solution

The fourth proportional to 347.07, 520.17 and 223.41 is: 334.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.07 : 520.17 = 223.41 : x
  2. Step 2: Convert to fraction form
    347.07/520.17 = 223.41/x
  3. Step 3: Cross multiply
    347.07x = 520.17 × 223.41
  4. Step 4: Simplify right side
    347.07x = 116,211.18
  5. Step 5: Solve for x
    x = 116,211.18/347.07
  6. Step 6: Final answer
    x = 334.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.