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Finding the Fourth Proportional to 298.47, 412.03 and 200.28

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Solution

The fourth proportional to 298.47, 412.03 and 200.28 is: 276.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    298.47 : 412.03 = 200.28 : x
  2. Step 2: Convert to fraction form
    298.47/412.03 = 200.28/x
  3. Step 3: Cross multiply
    298.47x = 412.03 × 200.28
  4. Step 4: Simplify right side
    298.47x = 82,521.37
  5. Step 5: Solve for x
    x = 82,521.37/298.47
  6. Step 6: Final answer
    x = 276.48

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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.