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Finding the Fourth Proportional to 249.74, 376.54 and 248.18

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Solution

The fourth proportional to 249.74, 376.54 and 248.18 is: 374.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.74 : 376.54 = 248.18 : x
  2. Step 2: Convert to fraction form
    249.74/376.54 = 248.18/x
  3. Step 3: Cross multiply
    249.74x = 376.54 × 248.18
  4. Step 4: Simplify right side
    249.74x = 93,448.46
  5. Step 5: Solve for x
    x = 93,448.46/249.74
  6. Step 6: Final answer
    x = 374.18

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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.