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Finding the Fourth Proportional to 202.30, 302.73 and 194.20

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Solution

The fourth proportional to 202.30, 302.73 and 194.20 is: 290.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.30 : 302.73 = 194.20 : x
  2. Step 2: Convert to fraction form
    202.30/302.73 = 194.20/x
  3. Step 3: Cross multiply
    202.30x = 302.73 × 194.20
  4. Step 4: Simplify right side
    202.30x = 58,790.17
  5. Step 5: Solve for x
    x = 58,790.17/202.30
  6. Step 6: Final answer
    x = 290.61

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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.