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Finding the Fourth Proportional to 335.75, 465.32 and 330.63

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Solution

The fourth proportional to 335.75, 465.32 and 330.63 is: 458.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.75 : 465.32 = 330.63 : x
  2. Step 2: Convert to fraction form
    335.75/465.32 = 330.63/x
  3. Step 3: Cross multiply
    335.75x = 465.32 × 330.63
  4. Step 4: Simplify right side
    335.75x = 153,847.10
  5. Step 5: Solve for x
    x = 153,847.10/335.75
  6. Step 6: Final answer
    x = 458.22

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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.