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Finding the Fourth Proportional to 348.05, 480.30 and 200.68

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Solution

The fourth proportional to 348.05, 480.30 and 200.68 is: 276.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.05 : 480.30 = 200.68 : x
  2. Step 2: Convert to fraction form
    348.05/480.30 = 200.68/x
  3. Step 3: Cross multiply
    348.05x = 480.30 × 200.68
  4. Step 4: Simplify right side
    348.05x = 96,386.60
  5. Step 5: Solve for x
    x = 96,386.60/348.05
  6. Step 6: Final answer
    x = 276.93

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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.