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Finding the Fourth Proportional to 273.10, 376.95 and 245.42

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Solution

The fourth proportional to 273.10, 376.95 and 245.42 is: 338.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.10 : 376.95 = 245.42 : x
  2. Step 2: Convert to fraction form
    273.10/376.95 = 245.42/x
  3. Step 3: Cross multiply
    273.10x = 376.95 × 245.42
  4. Step 4: Simplify right side
    273.10x = 92,511.07
  5. Step 5: Solve for x
    x = 92,511.07/273.10
  6. Step 6: Final answer
    x = 338.74

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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.