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Finding the Fourth Proportional to 267.93, 369.86 and 202.45

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Solution

The fourth proportional to 267.93, 369.86 and 202.45 is: 279.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.93 : 369.86 = 202.45 : x
  2. Step 2: Convert to fraction form
    267.93/369.86 = 202.45/x
  3. Step 3: Cross multiply
    267.93x = 369.86 × 202.45
  4. Step 4: Simplify right side
    267.93x = 74,878.16
  5. Step 5: Solve for x
    x = 74,878.16/267.93
  6. Step 6: Final answer
    x = 279.47

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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.