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Finding the Fourth Proportional to 383.88, 529.38 and 273.36

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Solution

The fourth proportional to 383.88, 529.38 and 273.36 is: 376.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.88 : 529.38 = 273.36 : x
  2. Step 2: Convert to fraction form
    383.88/529.38 = 273.36/x
  3. Step 3: Cross multiply
    383.88x = 529.38 × 273.36
  4. Step 4: Simplify right side
    383.88x = 144,711.32
  5. Step 5: Solve for x
    x = 144,711.32/383.88
  6. Step 6: Final answer
    x = 376.97

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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.