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Finding the Fourth Proportional to 490.12, 735.18 and 273.58

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Solution

The fourth proportional to 490.12, 735.18 and 273.58 is: 410.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    490.12 : 735.18 = 273.58 : x
  2. Step 2: Convert to fraction form
    490.12/735.18 = 273.58/x
  3. Step 3: Cross multiply
    490.12x = 735.18 × 273.58
  4. Step 4: Simplify right side
    490.12x = 201,130.54
  5. Step 5: Solve for x
    x = 201,130.54/490.12
  6. Step 6: Final answer
    x = 410.37

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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.