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Finding the Fourth Proportional to 268.56, 372.60 and 266.16

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Solution

The fourth proportional to 268.56, 372.60 and 266.16 is: 369.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.56 : 372.60 = 266.16 : x
  2. Step 2: Convert to fraction form
    268.56/372.60 = 266.16/x
  3. Step 3: Cross multiply
    268.56x = 372.60 × 266.16
  4. Step 4: Simplify right side
    268.56x = 99,171.22
  5. Step 5: Solve for x
    x = 99,171.22/268.56
  6. Step 6: Final answer
    x = 369.27

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.