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Finding the Fourth Proportional to 479.22, 719.03 and 273.48

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Solution

The fourth proportional to 479.22, 719.03 and 273.48 is: 410.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.22 : 719.03 = 273.48 : x
  2. Step 2: Convert to fraction form
    479.22/719.03 = 273.48/x
  3. Step 3: Cross multiply
    479.22x = 719.03 × 273.48
  4. Step 4: Simplify right side
    479.22x = 196,640.32
  5. Step 5: Solve for x
    x = 196,640.32/479.22
  6. Step 6: Final answer
    x = 410.33

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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.