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Finding the Fourth Proportional to 267.07, 368.42 and 207.95

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Solution

The fourth proportional to 267.07, 368.42 and 207.95 is: 286.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.07 : 368.42 = 207.95 : x
  2. Step 2: Convert to fraction form
    267.07/368.42 = 207.95/x
  3. Step 3: Cross multiply
    267.07x = 368.42 × 207.95
  4. Step 4: Simplify right side
    267.07x = 76,612.02
  5. Step 5: Solve for x
    x = 76,612.02/267.07
  6. Step 6: Final answer
    x = 286.86

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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.