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Finding the Fourth Proportional to 569.93, 854.90 and 199.71

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Solution

The fourth proportional to 569.93, 854.90 and 199.71 is: 299.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.93 : 854.90 = 199.71 : x
  2. Step 2: Convert to fraction form
    569.93/854.90 = 199.71/x
  3. Step 3: Cross multiply
    569.93x = 854.90 × 199.71
  4. Step 4: Simplify right side
    569.93x = 170,731.08
  5. Step 5: Solve for x
    x = 170,731.08/569.93
  6. Step 6: Final answer
    x = 299.56

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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.