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Finding the Fourth Proportional to 202.83, 304.23 and 111.70

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Solution

The fourth proportional to 202.83, 304.23 and 111.70 is: 167.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.83 : 304.23 = 111.70 : x
  2. Step 2: Convert to fraction form
    202.83/304.23 = 111.70/x
  3. Step 3: Cross multiply
    202.83x = 304.23 × 111.70
  4. Step 4: Simplify right side
    202.83x = 33,982.49
  5. Step 5: Solve for x
    x = 33,982.49/202.83
  6. Step 6: Final answer
    x = 167.54

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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.