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Finding the Fourth Proportional to 200.24, 298.40 and 193.72

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Solution

The fourth proportional to 200.24, 298.40 and 193.72 is: 288.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.24 : 298.40 = 193.72 : x
  2. Step 2: Convert to fraction form
    200.24/298.40 = 193.72/x
  3. Step 3: Cross multiply
    200.24x = 298.40 × 193.72
  4. Step 4: Simplify right side
    200.24x = 57,806.05
  5. Step 5: Solve for x
    x = 57,806.05/200.24
  6. Step 6: Final answer
    x = 288.68

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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.