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Finding the Fourth Proportional to 327.15, 450.65 and 303.52

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Solution

The fourth proportional to 327.15, 450.65 and 303.52 is: 418.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.15 : 450.65 = 303.52 : x
  2. Step 2: Convert to fraction form
    327.15/450.65 = 303.52/x
  3. Step 3: Cross multiply
    327.15x = 450.65 × 303.52
  4. Step 4: Simplify right side
    327.15x = 136,781.29
  5. Step 5: Solve for x
    x = 136,781.29/327.15
  6. Step 6: Final answer
    x = 418.10

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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.