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Finding the Fourth Proportional to 266.16, 364.48 and 251.36

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Solution

The fourth proportional to 266.16, 364.48 and 251.36 is: 344.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.16 : 364.48 = 251.36 : x
  2. Step 2: Convert to fraction form
    266.16/364.48 = 251.36/x
  3. Step 3: Cross multiply
    266.16x = 364.48 × 251.36
  4. Step 4: Simplify right side
    266.16x = 91,615.69
  5. Step 5: Solve for x
    x = 91,615.69/266.16
  6. Step 6: Final answer
    x = 344.21

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.