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Finding the Fourth Proportional to 347.86, 480.13 and 200.58

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Solution

The fourth proportional to 347.86, 480.13 and 200.58 is: 276.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.86 : 480.13 = 200.58 : x
  2. Step 2: Convert to fraction form
    347.86/480.13 = 200.58/x
  3. Step 3: Cross multiply
    347.86x = 480.13 × 200.58
  4. Step 4: Simplify right side
    347.86x = 96,304.48
  5. Step 5: Solve for x
    x = 96,304.48/347.86
  6. Step 6: Final answer
    x = 276.85

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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.