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Finding the Fourth Proportional to 244.72, 367.16 and 147.20

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Solution

The fourth proportional to 244.72, 367.16 and 147.20 is: 220.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.72 : 367.16 = 147.20 : x
  2. Step 2: Convert to fraction form
    244.72/367.16 = 147.20/x
  3. Step 3: Cross multiply
    244.72x = 367.16 × 147.20
  4. Step 4: Simplify right side
    244.72x = 54,045.95
  5. Step 5: Solve for x
    x = 54,045.95/244.72
  6. Step 6: Final answer
    x = 220.85

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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.