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Finding the Fourth Proportional to 333, 460.74 and 286.32

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Solution

The fourth proportional to 333, 460.74 and 286.32 is: 396.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    333 : 460.74 = 286.32 : x
  2. Step 2: Convert to fraction form
    333/460.74 = 286.32/x
  3. Step 3: Cross multiply
    333x = 460.74 × 286.32
  4. Step 4: Simplify right side
    333x = 131,919.08
  5. Step 5: Solve for x
    x = 131,919.08/333
  6. Step 6: Final answer
    x = 396.15

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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.