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Finding the Fourth Proportional to 200.21, 299.06 and 181.98

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Solution

The fourth proportional to 200.21, 299.06 and 181.98 is: 271.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.21 : 299.06 = 181.98 : x
  2. Step 2: Convert to fraction form
    200.21/299.06 = 181.98/x
  3. Step 3: Cross multiply
    200.21x = 299.06 × 181.98
  4. Step 4: Simplify right side
    200.21x = 54,422.71
  5. Step 5: Solve for x
    x = 54,422.71/200.21
  6. Step 6: Final answer
    x = 271.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.