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Finding the Fourth Proportional to 283.05, 388.49 and 251.26

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Solution

The fourth proportional to 283.05, 388.49 and 251.26 is: 344.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.05 : 388.49 = 251.26 : x
  2. Step 2: Convert to fraction form
    283.05/388.49 = 251.26/x
  3. Step 3: Cross multiply
    283.05x = 388.49 × 251.26
  4. Step 4: Simplify right side
    283.05x = 97,612.00
  5. Step 5: Solve for x
    x = 97,612.00/283.05
  6. Step 6: Final answer
    x = 344.86

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.