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Finding the Fourth Proportional to 615.60, 923.25 and 204.62

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Solution

The fourth proportional to 615.60, 923.25 and 204.62 is: 306.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.60 : 923.25 = 204.62 : x
  2. Step 2: Convert to fraction form
    615.60/923.25 = 204.62/x
  3. Step 3: Cross multiply
    615.60x = 923.25 × 204.62
  4. Step 4: Simplify right side
    615.60x = 188,910.80
  5. Step 5: Solve for x
    x = 188,910.80/615.60
  6. Step 6: Final answer
    x = 306.87

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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.