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Finding the Fourth Proportional to 231.08, 347.04 and 200.40

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Solution

The fourth proportional to 231.08, 347.04 and 200.40 is: 300.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.08 : 347.04 = 200.40 : x
  2. Step 2: Convert to fraction form
    231.08/347.04 = 200.40/x
  3. Step 3: Cross multiply
    231.08x = 347.04 × 200.40
  4. Step 4: Simplify right side
    231.08x = 69,546.82
  5. Step 5: Solve for x
    x = 69,546.82/231.08
  6. Step 6: Final answer
    x = 300.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.