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Finding the Fourth Proportional to 268.21, 404.33 and 250.35

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Solution

The fourth proportional to 268.21, 404.33 and 250.35 is: 377.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.21 : 404.33 = 250.35 : x
  2. Step 2: Convert to fraction form
    268.21/404.33 = 250.35/x
  3. Step 3: Cross multiply
    268.21x = 404.33 × 250.35
  4. Step 4: Simplify right side
    268.21x = 101,224.40
  5. Step 5: Solve for x
    x = 101,224.40/268.21
  6. Step 6: Final answer
    x = 377.40

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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.