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Finding the Fourth Proportional to 267.55, 369.24 and 157.06

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Solution

The fourth proportional to 267.55, 369.24 and 157.06 is: 216.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.55 : 369.24 = 157.06 : x
  2. Step 2: Convert to fraction form
    267.55/369.24 = 157.06/x
  3. Step 3: Cross multiply
    267.55x = 369.24 × 157.06
  4. Step 4: Simplify right side
    267.55x = 57,992.44
  5. Step 5: Solve for x
    x = 57,992.44/267.55
  6. Step 6: Final answer
    x = 216.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.