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Finding the Fourth Proportional to 273.08, 408.83 and 253.86

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Solution

The fourth proportional to 273.08, 408.83 and 253.86 is: 380.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.08 : 408.83 = 253.86 : x
  2. Step 2: Convert to fraction form
    273.08/408.83 = 253.86/x
  3. Step 3: Cross multiply
    273.08x = 408.83 × 253.86
  4. Step 4: Simplify right side
    273.08x = 103,783.83
  5. Step 5: Solve for x
    x = 103,783.83/273.08
  6. Step 6: Final answer
    x = 380.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.