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Finding the Fourth Proportional to 347.90, 480.05 and 200.48

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Solution

The fourth proportional to 347.90, 480.05 and 200.48 is: 276.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.90 : 480.05 = 200.48 : x
  2. Step 2: Convert to fraction form
    347.90/480.05 = 200.48/x
  3. Step 3: Cross multiply
    347.90x = 480.05 × 200.48
  4. Step 4: Simplify right side
    347.90x = 96,239.42
  5. Step 5: Solve for x
    x = 96,239.42/347.90
  6. Step 6: Final answer
    x = 276.63

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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.