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Finding the Fourth Proportional to 335.94, 465.57 and 330.81

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Solution

The fourth proportional to 335.94, 465.57 and 330.81 is: 458.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.94 : 465.57 = 330.81 : x
  2. Step 2: Convert to fraction form
    335.94/465.57 = 330.81/x
  3. Step 3: Cross multiply
    335.94x = 465.57 × 330.81
  4. Step 4: Simplify right side
    335.94x = 154,015.21
  5. Step 5: Solve for x
    x = 154,015.21/335.94
  6. Step 6: Final answer
    x = 458.46

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.