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Finding the Fourth Proportional to 572.41, 858.13 and 247.73

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Solution

The fourth proportional to 572.41, 858.13 and 247.73 is: 371.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.41 : 858.13 = 247.73 : x
  2. Step 2: Convert to fraction form
    572.41/858.13 = 247.73/x
  3. Step 3: Cross multiply
    572.41x = 858.13 × 247.73
  4. Step 4: Simplify right side
    572.41x = 212,584.54
  5. Step 5: Solve for x
    x = 212,584.54/572.41
  6. Step 6: Final answer
    x = 371.39

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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.