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Finding the Fourth Proportional to 542.22, 813.35 and 533.13

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Solution

The fourth proportional to 542.22, 813.35 and 533.13 is: 799.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    542.22 : 813.35 = 533.13 : x
  2. Step 2: Convert to fraction form
    542.22/813.35 = 533.13/x
  3. Step 3: Cross multiply
    542.22x = 813.35 × 533.13
  4. Step 4: Simplify right side
    542.22x = 433,621.29
  5. Step 5: Solve for x
    x = 433,621.29/542.22
  6. Step 6: Final answer
    x = 799.71

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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.