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Finding the Fourth Proportional to 541.99, 813.12 and 325.18

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Solution

The fourth proportional to 541.99, 813.12 and 325.18 is: 487.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.99 : 813.12 = 325.18 : x
  2. Step 2: Convert to fraction form
    541.99/813.12 = 325.18/x
  3. Step 3: Cross multiply
    541.99x = 813.12 × 325.18
  4. Step 4: Simplify right side
    541.99x = 264,410.36
  5. Step 5: Solve for x
    x = 264,410.36/541.99
  6. Step 6: Final answer
    x = 487.85

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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.