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Finding the Fourth Proportional to 542.00, 813.20 and 325.73

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Solution

The fourth proportional to 542.00, 813.20 and 325.73 is: 488.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    542.00 : 813.20 = 325.73 : x
  2. Step 2: Convert to fraction form
    542.00/813.20 = 325.73/x
  3. Step 3: Cross multiply
    542.00x = 813.20 × 325.73
  4. Step 4: Simplify right side
    542.00x = 264,877.94
  5. Step 5: Solve for x
    x = 264,877.94/542.00
  6. Step 6: Final answer
    x = 488.71

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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.