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Finding the Fourth Proportional to 159.87, 238.47 and 134.36

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Solution

The fourth proportional to 159.87, 238.47 and 134.36 is: 200.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.87 : 238.47 = 134.36 : x
  2. Step 2: Convert to fraction form
    159.87/238.47 = 134.36/x
  3. Step 3: Cross multiply
    159.87x = 238.47 × 134.36
  4. Step 4: Simplify right side
    159.87x = 32,039.64
  5. Step 5: Solve for x
    x = 32,039.64/159.87
  6. Step 6: Final answer
    x = 200.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.