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Finding the Fourth Proportional to 175.31, 262.97 and 53.56

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Solution

The fourth proportional to 175.31, 262.97 and 53.56 is: 80.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    175.31 : 262.97 = 53.56 : x
  2. Step 2: Convert to fraction form
    175.31/262.97 = 53.56/x
  3. Step 3: Cross multiply
    175.31x = 262.97 × 53.56
  4. Step 4: Simplify right side
    175.31x = 14,084.67
  5. Step 5: Solve for x
    x = 14,084.67/175.31
  6. Step 6: Final answer
    x = 80.34

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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.