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Finding the Fourth Proportional to 202.62, 302.24 and 197.82

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Solution

The fourth proportional to 202.62, 302.24 and 197.82 is: 295.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.62 : 302.24 = 197.82 : x
  2. Step 2: Convert to fraction form
    202.62/302.24 = 197.82/x
  3. Step 3: Cross multiply
    202.62x = 302.24 × 197.82
  4. Step 4: Simplify right side
    202.62x = 59,788.13
  5. Step 5: Solve for x
    x = 59,788.13/202.62
  6. Step 6: Final answer
    x = 295.08

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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.