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Finding the Fourth Proportional to 573.72, 860.79 and 249.32

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Solution

The fourth proportional to 573.72, 860.79 and 249.32 is: 374.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.72 : 860.79 = 249.32 : x
  2. Step 2: Convert to fraction form
    573.72/860.79 = 249.32/x
  3. Step 3: Cross multiply
    573.72x = 860.79 × 249.32
  4. Step 4: Simplify right side
    573.72x = 214,607.86
  5. Step 5: Solve for x
    x = 214,607.86/573.72
  6. Step 6: Final answer
    x = 374.06

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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.