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Finding the Fourth Proportional to 573.22, 860.28 and 281.17

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Solution

The fourth proportional to 573.22, 860.28 and 281.17 is: 421.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.22 : 860.28 = 281.17 : x
  2. Step 2: Convert to fraction form
    573.22/860.28 = 281.17/x
  3. Step 3: Cross multiply
    573.22x = 860.28 × 281.17
  4. Step 4: Simplify right side
    573.22x = 241,884.93
  5. Step 5: Solve for x
    x = 241,884.93/573.22
  6. Step 6: Final answer
    x = 421.98

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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.