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Finding the Fourth Proportional to 237.07, 326.83 and 154.18

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Solution

The fourth proportional to 237.07, 326.83 and 154.18 is: 212.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.07 : 326.83 = 154.18 : x
  2. Step 2: Convert to fraction form
    237.07/326.83 = 154.18/x
  3. Step 3: Cross multiply
    237.07x = 326.83 × 154.18
  4. Step 4: Simplify right side
    237.07x = 50,390.65
  5. Step 5: Solve for x
    x = 50,390.65/237.07
  6. Step 6: Final answer
    x = 212.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.