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Finding the Fourth Proportional to 347.28, 479.19 and 192

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Solution

The fourth proportional to 347.28, 479.19 and 192 is: 264.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.28 : 479.19 = 192 : x
  2. Step 2: Convert to fraction form
    347.28/479.19 = 192/x
  3. Step 3: Cross multiply
    347.28x = 479.19 × 192
  4. Step 4: Simplify right side
    347.28x = 92,004.48
  5. Step 5: Solve for x
    x = 92,004.48/347.28
  6. Step 6: Final answer
    x = 264.93

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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.