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Finding the Fourth Proportional to 249.30, 371.73 and 246.90

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Solution

The fourth proportional to 249.30, 371.73 and 246.90 is: 368.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.30 : 371.73 = 246.90 : x
  2. Step 2: Convert to fraction form
    249.30/371.73 = 246.90/x
  3. Step 3: Cross multiply
    249.30x = 371.73 × 246.90
  4. Step 4: Simplify right side
    249.30x = 91,780.14
  5. Step 5: Solve for x
    x = 91,780.14/249.30
  6. Step 6: Final answer
    x = 368.15

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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.