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Finding the Fourth Proportional to 207.46, 286.29 and 114.20

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Solution

The fourth proportional to 207.46, 286.29 and 114.20 is: 157.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    207.46 : 286.29 = 114.20 : x
  2. Step 2: Convert to fraction form
    207.46/286.29 = 114.20/x
  3. Step 3: Cross multiply
    207.46x = 286.29 × 114.20
  4. Step 4: Simplify right side
    207.46x = 32,694.75
  5. Step 5: Solve for x
    x = 32,694.75/207.46
  6. Step 6: Final answer
    x = 157.59

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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.