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Finding the Fourth Proportional to 159.23, 238.55 and 124.81

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Solution

The fourth proportional to 159.23, 238.55 and 124.81 is: 186.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.23 : 238.55 = 124.81 : x
  2. Step 2: Convert to fraction form
    159.23/238.55 = 124.81/x
  3. Step 3: Cross multiply
    159.23x = 238.55 × 124.81
  4. Step 4: Simplify right side
    159.23x = 29,772.21
  5. Step 5: Solve for x
    x = 29,772.21/159.23
  6. Step 6: Final answer
    x = 186.97

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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.