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Finding the Fourth Proportional to 397.93, 549.04 and 273.63

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Solution

The fourth proportional to 397.93, 549.04 and 273.63 is: 377.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    397.93 : 549.04 = 273.63 : x
  2. Step 2: Convert to fraction form
    397.93/549.04 = 273.63/x
  3. Step 3: Cross multiply
    397.93x = 549.04 × 273.63
  4. Step 4: Simplify right side
    397.93x = 150,233.82
  5. Step 5: Solve for x
    x = 150,233.82/397.93
  6. Step 6: Final answer
    x = 377.54

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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.