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Finding the Fourth Proportional to 536.52, 803.46 and 261.73

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Solution

The fourth proportional to 536.52, 803.46 and 261.73 is: 391.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    536.52 : 803.46 = 261.73 : x
  2. Step 2: Convert to fraction form
    536.52/803.46 = 261.73/x
  3. Step 3: Cross multiply
    536.52x = 803.46 × 261.73
  4. Step 4: Simplify right side
    536.52x = 210,285.57
  5. Step 5: Solve for x
    x = 210,285.57/536.52
  6. Step 6: Final answer
    x = 391.94

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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.