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Finding the Fourth Proportional to 383.37, 575.34 and 272.97

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Solution

The fourth proportional to 383.37, 575.34 and 272.97 is: 409.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.37 : 575.34 = 272.97 : x
  2. Step 2: Convert to fraction form
    383.37/575.34 = 272.97/x
  3. Step 3: Cross multiply
    383.37x = 575.34 × 272.97
  4. Step 4: Simplify right side
    383.37x = 157,050.56
  5. Step 5: Solve for x
    x = 157,050.56/383.37
  6. Step 6: Final answer
    x = 409.66

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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.