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Finding the Fourth Proportional to 249.21, 371.50 and 235.53

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Solution

The fourth proportional to 249.21, 371.50 and 235.53 is: 351.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.21 : 371.50 = 235.53 : x
  2. Step 2: Convert to fraction form
    249.21/371.50 = 235.53/x
  3. Step 3: Cross multiply
    249.21x = 371.50 × 235.53
  4. Step 4: Simplify right side
    249.21x = 87,498.81
  5. Step 5: Solve for x
    x = 87,498.81/249.21
  6. Step 6: Final answer
    x = 351.10

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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.