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Finding the Fourth Proportional to 335.64, 504.45 and 326.55

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Solution

The fourth proportional to 335.64, 504.45 and 326.55 is: 490.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.64 : 504.45 = 326.55 : x
  2. Step 2: Convert to fraction form
    335.64/504.45 = 326.55/x
  3. Step 3: Cross multiply
    335.64x = 504.45 × 326.55
  4. Step 4: Simplify right side
    335.64x = 164,723.99
  5. Step 5: Solve for x
    x = 164,723.99/335.64
  6. Step 6: Final answer
    x = 490.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.