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Finding the Fourth Proportional to 383.02, 528.60 and 327.94

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Solution

The fourth proportional to 383.02, 528.60 and 327.94 is: 452.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.02 : 528.60 = 327.94 : x
  2. Step 2: Convert to fraction form
    383.02/528.60 = 327.94/x
  3. Step 3: Cross multiply
    383.02x = 528.60 × 327.94
  4. Step 4: Simplify right side
    383.02x = 173,349.08
  5. Step 5: Solve for x
    x = 173,349.08/383.02
  6. Step 6: Final answer
    x = 452.58

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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.