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Finding the Fourth Proportional to 383.04, 528.30 and 235.41

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Solution

The fourth proportional to 383.04, 528.30 and 235.41 is: 324.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.04 : 528.30 = 235.41 : x
  2. Step 2: Convert to fraction form
    383.04/528.30 = 235.41/x
  3. Step 3: Cross multiply
    383.04x = 528.30 × 235.41
  4. Step 4: Simplify right side
    383.04x = 124,367.10
  5. Step 5: Solve for x
    x = 124,367.10/383.04
  6. Step 6: Final answer
    x = 324.68

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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.