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Finding the Fourth Proportional to 383.24, 528.79 and 235.82

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Solution

The fourth proportional to 383.24, 528.79 and 235.82 is: 325.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.24 : 528.79 = 235.82 : x
  2. Step 2: Convert to fraction form
    383.24/528.79 = 235.82/x
  3. Step 3: Cross multiply
    383.24x = 528.79 × 235.82
  4. Step 4: Simplify right side
    383.24x = 124,699.26
  5. Step 5: Solve for x
    x = 124,699.26/383.24
  6. Step 6: Final answer
    x = 325.38

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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.