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Finding the Fourth Proportional to 267.03, 368.43 and 154.98

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Solution

The fourth proportional to 267.03, 368.43 and 154.98 is: 213.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.03 : 368.43 = 154.98 : x
  2. Step 2: Convert to fraction form
    267.03/368.43 = 154.98/x
  3. Step 3: Cross multiply
    267.03x = 368.43 × 154.98
  4. Step 4: Simplify right side
    267.03x = 57,099.28
  5. Step 5: Solve for x
    x = 57,099.28/267.03
  6. Step 6: Final answer
    x = 213.83

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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.