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Finding the Fourth Proportional to 235.53, 351.92 and 173.56

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Solution

The fourth proportional to 235.53, 351.92 and 173.56 is: 259.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.53 : 351.92 = 173.56 : x
  2. Step 2: Convert to fraction form
    235.53/351.92 = 173.56/x
  3. Step 3: Cross multiply
    235.53x = 351.92 × 173.56
  4. Step 4: Simplify right side
    235.53x = 61,079.24
  5. Step 5: Solve for x
    x = 61,079.24/235.53
  6. Step 6: Final answer
    x = 259.33

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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.