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Finding the Fourth Proportional to 306.79, 423.25 and 182.41

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Solution

The fourth proportional to 306.79, 423.25 and 182.41 is: 251.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    306.79 : 423.25 = 182.41 : x
  2. Step 2: Convert to fraction form
    306.79/423.25 = 182.41/x
  3. Step 3: Cross multiply
    306.79x = 423.25 × 182.41
  4. Step 4: Simplify right side
    306.79x = 77,205.03
  5. Step 5: Solve for x
    x = 77,205.03/306.79
  6. Step 6: Final answer
    x = 251.65

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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.