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Finding the Fourth Proportional to 326.06, 489.22 and 154.94

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Solution

The fourth proportional to 326.06, 489.22 and 154.94 is: 232.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.06 : 489.22 = 154.94 : x
  2. Step 2: Convert to fraction form
    326.06/489.22 = 154.94/x
  3. Step 3: Cross multiply
    326.06x = 489.22 × 154.94
  4. Step 4: Simplify right side
    326.06x = 75,799.75
  5. Step 5: Solve for x
    x = 75,799.75/326.06
  6. Step 6: Final answer
    x = 232.47

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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.