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Finding the Fourth Proportional to 567.21, 850.74 and 258.73

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Solution

The fourth proportional to 567.21, 850.74 and 258.73 is: 388.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.21 : 850.74 = 258.73 : x
  2. Step 2: Convert to fraction form
    567.21/850.74 = 258.73/x
  3. Step 3: Cross multiply
    567.21x = 850.74 × 258.73
  4. Step 4: Simplify right side
    567.21x = 220,111.96
  5. Step 5: Solve for x
    x = 220,111.96/567.21
  6. Step 6: Final answer
    x = 388.06

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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.