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Finding the Fourth Proportional to 415.12, 622.84 and 244.24

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Solution

The fourth proportional to 415.12, 622.84 and 244.24 is: 366.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    415.12 : 622.84 = 244.24 : x
  2. Step 2: Convert to fraction form
    415.12/622.84 = 244.24/x
  3. Step 3: Cross multiply
    415.12x = 622.84 × 244.24
  4. Step 4: Simplify right side
    415.12x = 152,122.44
  5. Step 5: Solve for x
    x = 152,122.44/415.12
  6. Step 6: Final answer
    x = 366.45

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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.