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Finding the Fourth Proportional to 175.85, 262.71 and 155.78

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Solution

The fourth proportional to 175.85, 262.71 and 155.78 is: 232.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.85 : 262.71 = 155.78 : x
  2. Step 2: Convert to fraction form
    175.85/262.71 = 155.78/x
  3. Step 3: Cross multiply
    175.85x = 262.71 × 155.78
  4. Step 4: Simplify right side
    175.85x = 40,924.96
  5. Step 5: Solve for x
    x = 40,924.96/175.85
  6. Step 6: Final answer
    x = 232.73

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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.