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Finding the Fourth Proportional to 383.94, 529.97 and 236.58

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Solution

The fourth proportional to 383.94, 529.97 and 236.58 is: 326.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.94 : 529.97 = 236.58 : x
  2. Step 2: Convert to fraction form
    383.94/529.97 = 236.58/x
  3. Step 3: Cross multiply
    383.94x = 529.97 × 236.58
  4. Step 4: Simplify right side
    383.94x = 125,381.11
  5. Step 5: Solve for x
    x = 125,381.11/383.94
  6. Step 6: Final answer
    x = 326.57

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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.