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Finding the Fourth Proportional to 159.54, 237.94 and 156.81

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Solution

The fourth proportional to 159.54, 237.94 and 156.81 is: 233.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159.54 : 237.94 = 156.81 : x
  2. Step 2: Convert to fraction form
    159.54/237.94 = 156.81/x
  3. Step 3: Cross multiply
    159.54x = 237.94 × 156.81
  4. Step 4: Simplify right side
    159.54x = 37,310.68
  5. Step 5: Solve for x
    x = 37,310.68/159.54
  6. Step 6: Final answer
    x = 233.86

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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.