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Finding the Fourth Proportional to 159.88, 239.41 and 134.06

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Solution

The fourth proportional to 159.88, 239.41 and 134.06 is: 200.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.88 : 239.41 = 134.06 : x
  2. Step 2: Convert to fraction form
    159.88/239.41 = 134.06/x
  3. Step 3: Cross multiply
    159.88x = 239.41 × 134.06
  4. Step 4: Simplify right side
    159.88x = 32,095.57
  5. Step 5: Solve for x
    x = 32,095.57/159.88
  6. Step 6: Final answer
    x = 200.75

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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.