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Finding the Fourth Proportional to 569.28, 853.94 and 376.80

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Solution

The fourth proportional to 569.28, 853.94 and 376.80 is: 565.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.28 : 853.94 = 376.80 : x
  2. Step 2: Convert to fraction form
    569.28/853.94 = 376.80/x
  3. Step 3: Cross multiply
    569.28x = 853.94 × 376.80
  4. Step 4: Simplify right side
    569.28x = 321,764.59
  5. Step 5: Solve for x
    x = 321,764.59/569.28
  6. Step 6: Final answer
    x = 565.21

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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.