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Finding the Fourth Proportional to 249.83, 376.47 and 225.48

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Solution

The fourth proportional to 249.83, 376.47 and 225.48 is: 339.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.83 : 376.47 = 225.48 : x
  2. Step 2: Convert to fraction form
    249.83/376.47 = 225.48/x
  3. Step 3: Cross multiply
    249.83x = 376.47 × 225.48
  4. Step 4: Simplify right side
    249.83x = 84,886.46
  5. Step 5: Solve for x
    x = 84,886.46/249.83
  6. Step 6: Final answer
    x = 339.78

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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.