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Finding the Fourth Proportional to 244.79, 367.15 and 82.45

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Solution

The fourth proportional to 244.79, 367.15 and 82.45 is: 123.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.79 : 367.15 = 82.45 : x
  2. Step 2: Convert to fraction form
    244.79/367.15 = 82.45/x
  3. Step 3: Cross multiply
    244.79x = 367.15 × 82.45
  4. Step 4: Simplify right side
    244.79x = 30,269.68
  5. Step 5: Solve for x
    x = 30,269.68/244.79
  6. Step 6: Final answer
    x = 123.66

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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.