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Finding the Fourth Proportional to 569.08, 853.51 and 260.94

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Solution

The fourth proportional to 569.08, 853.51 and 260.94 is: 391.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.08 : 853.51 = 260.94 : x
  2. Step 2: Convert to fraction form
    569.08/853.51 = 260.94/x
  3. Step 3: Cross multiply
    569.08x = 853.51 × 260.94
  4. Step 4: Simplify right side
    569.08x = 222,709.33
  5. Step 5: Solve for x
    x = 222,709.33/569.08
  6. Step 6: Final answer
    x = 391.35

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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.