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Finding the Fourth Proportional to 455.20, 683.03 and 195.37

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Solution

The fourth proportional to 455.20, 683.03 and 195.37 is: 293.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    455.20 : 683.03 = 195.37 : x
  2. Step 2: Convert to fraction form
    455.20/683.03 = 195.37/x
  3. Step 3: Cross multiply
    455.20x = 683.03 × 195.37
  4. Step 4: Simplify right side
    455.20x = 133,443.57
  5. Step 5: Solve for x
    x = 133,443.57/455.20
  6. Step 6: Final answer
    x = 293.15

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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.