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Finding the Fourth Proportional to 207.67, 286.24 and 190.24

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Solution

The fourth proportional to 207.67, 286.24 and 190.24 is: 262.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    207.67 : 286.24 = 190.24 : x
  2. Step 2: Convert to fraction form
    207.67/286.24 = 190.24/x
  3. Step 3: Cross multiply
    207.67x = 286.24 × 190.24
  4. Step 4: Simplify right side
    207.67x = 54,454.30
  5. Step 5: Solve for x
    x = 54,454.30/207.67
  6. Step 6: Final answer
    x = 262.22

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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.