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Finding the Fourth Proportional to 207.33, 286.13 and 124.44

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Solution

The fourth proportional to 207.33, 286.13 and 124.44 is: 171.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    207.33 : 286.13 = 124.44 : x
  2. Step 2: Convert to fraction form
    207.33/286.13 = 124.44/x
  3. Step 3: Cross multiply
    207.33x = 286.13 × 124.44
  4. Step 4: Simplify right side
    207.33x = 35,606.02
  5. Step 5: Solve for x
    x = 35,606.02/207.33
  6. Step 6: Final answer
    x = 171.74

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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.