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Finding the Fourth Proportional to 303.36, 419.36 and 276.36

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Solution

The fourth proportional to 303.36, 419.36 and 276.36 is: 382.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.36 : 419.36 = 276.36 : x
  2. Step 2: Convert to fraction form
    303.36/419.36 = 276.36/x
  3. Step 3: Cross multiply
    303.36x = 419.36 × 276.36
  4. Step 4: Simplify right side
    303.36x = 115,892.95
  5. Step 5: Solve for x
    x = 115,892.95/303.36
  6. Step 6: Final answer
    x = 382.03

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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.