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Finding the Fourth Proportional to 273.95, 377.33 and 210.81

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Solution

The fourth proportional to 273.95, 377.33 and 210.81 is: 290.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.95 : 377.33 = 210.81 : x
  2. Step 2: Convert to fraction form
    273.95/377.33 = 210.81/x
  3. Step 3: Cross multiply
    273.95x = 377.33 × 210.81
  4. Step 4: Simplify right side
    273.95x = 79,544.94
  5. Step 5: Solve for x
    x = 79,544.94/273.95
  6. Step 6: Final answer
    x = 290.37

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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.