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Finding the Fourth Proportional to 541.21, 811.08 and 335.35

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Solution

The fourth proportional to 541.21, 811.08 and 335.35 is: 502.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.21 : 811.08 = 335.35 : x
  2. Step 2: Convert to fraction form
    541.21/811.08 = 335.35/x
  3. Step 3: Cross multiply
    541.21x = 811.08 × 335.35
  4. Step 4: Simplify right side
    541.21x = 271,995.68
  5. Step 5: Solve for x
    x = 271,995.68/541.21
  6. Step 6: Final answer
    x = 502.57

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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.