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Finding the Fourth Proportional to 541.16, 746.64 and 331.11

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Solution

The fourth proportional to 541.16, 746.64 and 331.11 is: 456.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.16 : 746.64 = 331.11 : x
  2. Step 2: Convert to fraction form
    541.16/746.64 = 331.11/x
  3. Step 3: Cross multiply
    541.16x = 746.64 × 331.11
  4. Step 4: Simplify right side
    541.16x = 247,219.97
  5. Step 5: Solve for x
    x = 247,219.97/541.16
  6. Step 6: Final answer
    x = 456.83

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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.