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Finding the Fourth Proportional to 383.09, 527.90 and 272.37

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Solution

The fourth proportional to 383.09, 527.90 and 272.37 is: 375.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.09 : 527.90 = 272.37 : x
  2. Step 2: Convert to fraction form
    383.09/527.90 = 272.37/x
  3. Step 3: Cross multiply
    383.09x = 527.90 × 272.37
  4. Step 4: Simplify right side
    383.09x = 143,784.12
  5. Step 5: Solve for x
    x = 143,784.12/383.09
  6. Step 6: Final answer
    x = 375.33

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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.