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Finding the Fourth Proportional to 569.80, 854.88 and 338.95

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Solution

The fourth proportional to 569.80, 854.88 and 338.95 is: 508.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.80 : 854.88 = 338.95 : x
  2. Step 2: Convert to fraction form
    569.80/854.88 = 338.95/x
  3. Step 3: Cross multiply
    569.80x = 854.88 × 338.95
  4. Step 4: Simplify right side
    569.80x = 289,761.58
  5. Step 5: Solve for x
    x = 289,761.58/569.80
  6. Step 6: Final answer
    x = 508.53

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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.