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Finding the Fourth Proportional to 273.51, 376.38 and 207.90

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Solution

The fourth proportional to 273.51, 376.38 and 207.90 is: 286.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.51 : 376.38 = 207.90 : x
  2. Step 2: Convert to fraction form
    273.51/376.38 = 207.90/x
  3. Step 3: Cross multiply
    273.51x = 376.38 × 207.90
  4. Step 4: Simplify right side
    273.51x = 78,249.40
  5. Step 5: Solve for x
    x = 78,249.40/273.51
  6. Step 6: Final answer
    x = 286.09

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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.