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Finding the Fourth Proportional to 385.03, 576.97 and 199.51

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Solution

The fourth proportional to 385.03, 576.97 and 199.51 is: 298.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    385.03 : 576.97 = 199.51 : x
  2. Step 2: Convert to fraction form
    385.03/576.97 = 199.51/x
  3. Step 3: Cross multiply
    385.03x = 576.97 × 199.51
  4. Step 4: Simplify right side
    385.03x = 115,110.29
  5. Step 5: Solve for x
    x = 115,110.29/385.03
  6. Step 6: Final answer
    x = 298.97

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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.