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Finding the Fourth Proportional to 155.89, 232.73 and 141.54

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Solution

The fourth proportional to 155.89, 232.73 and 141.54 is: 211.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.89 : 232.73 = 141.54 : x
  2. Step 2: Convert to fraction form
    155.89/232.73 = 141.54/x
  3. Step 3: Cross multiply
    155.89x = 232.73 × 141.54
  4. Step 4: Simplify right side
    155.89x = 32,940.60
  5. Step 5: Solve for x
    x = 32,940.60/155.89
  6. Step 6: Final answer
    x = 211.31

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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.