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Finding the Fourth Proportional to 169.41, 235.07 and 162.56

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Solution

The fourth proportional to 169.41, 235.07 and 162.56 is: 225.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.41 : 235.07 = 162.56 : x
  2. Step 2: Convert to fraction form
    169.41/235.07 = 162.56/x
  3. Step 3: Cross multiply
    169.41x = 235.07 × 162.56
  4. Step 4: Simplify right side
    169.41x = 38,210.99
  5. Step 5: Solve for x
    x = 38,210.99/169.41
  6. Step 6: Final answer
    x = 225.55

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.