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Finding the Fourth Proportional to 347.95, 480.11 and 200.55

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Solution

The fourth proportional to 347.95, 480.11 and 200.55 is: 276.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.95 : 480.11 = 200.55 : x
  2. Step 2: Convert to fraction form
    347.95/480.11 = 200.55/x
  3. Step 3: Cross multiply
    347.95x = 480.11 × 200.55
  4. Step 4: Simplify right side
    347.95x = 96,287.48
  5. Step 5: Solve for x
    x = 96,287.48/347.95
  6. Step 6: Final answer
    x = 276.73

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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.