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Finding the Fourth Proportional to 383.53, 575.65 and 201.05

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Solution

The fourth proportional to 383.53, 575.65 and 201.05 is: 301.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.53 : 575.65 = 201.05 : x
  2. Step 2: Convert to fraction form
    383.53/575.65 = 201.05/x
  3. Step 3: Cross multiply
    383.53x = 575.65 × 201.05
  4. Step 4: Simplify right side
    383.53x = 115,734.43
  5. Step 5: Solve for x
    x = 115,734.43/383.53
  6. Step 6: Final answer
    x = 301.77

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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.