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Finding the Fourth Proportional to 266.67, 398.14 and 250.27

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Solution

The fourth proportional to 266.67, 398.14 and 250.27 is: 373.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.67 : 398.14 = 250.27 : x
  2. Step 2: Convert to fraction form
    266.67/398.14 = 250.27/x
  3. Step 3: Cross multiply
    266.67x = 398.14 × 250.27
  4. Step 4: Simplify right side
    266.67x = 99,640.51
  5. Step 5: Solve for x
    x = 99,640.51/266.67
  6. Step 6: Final answer
    x = 373.65

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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.