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Finding the Fourth Proportional to 207.84, 311.36 and 200.37

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Solution

The fourth proportional to 207.84, 311.36 and 200.37 is: 300.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    207.84 : 311.36 = 200.37 : x
  2. Step 2: Convert to fraction form
    207.84/311.36 = 200.37/x
  3. Step 3: Cross multiply
    207.84x = 311.36 × 200.37
  4. Step 4: Simplify right side
    207.84x = 62,386.20
  5. Step 5: Solve for x
    x = 62,386.20/207.84
  6. Step 6: Final answer
    x = 300.16

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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.