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Finding the Fourth Proportional to 569.92, 854.60 and 338.84

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Solution

The fourth proportional to 569.92, 854.60 and 338.84 is: 508.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.92 : 854.60 = 338.84 : x
  2. Step 2: Convert to fraction form
    569.92/854.60 = 338.84/x
  3. Step 3: Cross multiply
    569.92x = 854.60 × 338.84
  4. Step 4: Simplify right side
    569.92x = 289,572.66
  5. Step 5: Solve for x
    x = 289,572.66/569.92
  6. Step 6: Final answer
    x = 508.09

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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.