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Finding the Fourth Proportional to 569.58, 855.72 and 364.55

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Solution

The fourth proportional to 569.58, 855.72 and 364.55 is: 547.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.58 : 855.72 = 364.55 : x
  2. Step 2: Convert to fraction form
    569.58/855.72 = 364.55/x
  3. Step 3: Cross multiply
    569.58x = 855.72 × 364.55
  4. Step 4: Simplify right side
    569.58x = 311,948.45
  5. Step 5: Solve for x
    x = 311,948.45/569.58
  6. Step 6: Final answer
    x = 547.68

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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.