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Finding the Fourth Proportional to 261.61, 394.39 and 244.44

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Solution

The fourth proportional to 261.61, 394.39 and 244.44 is: 368.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    261.61 : 394.39 = 244.44 : x
  2. Step 2: Convert to fraction form
    261.61/394.39 = 244.44/x
  3. Step 3: Cross multiply
    261.61x = 394.39 × 244.44
  4. Step 4: Simplify right side
    261.61x = 96,404.69
  5. Step 5: Solve for x
    x = 96,404.69/261.61
  6. Step 6: Final answer
    x = 368.51

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.