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Finding the Fourth Proportional to 244.41, 364.84 and 215.22

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Solution

The fourth proportional to 244.41, 364.84 and 215.22 is: 321.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.41 : 364.84 = 215.22 : x
  2. Step 2: Convert to fraction form
    244.41/364.84 = 215.22/x
  3. Step 3: Cross multiply
    244.41x = 364.84 × 215.22
  4. Step 4: Simplify right side
    244.41x = 78,520.86
  5. Step 5: Solve for x
    x = 78,520.86/244.41
  6. Step 6: Final answer
    x = 321.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.