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Finding the Fourth Proportional to 450.77, 621.83 and 273.68

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Solution

The fourth proportional to 450.77, 621.83 and 273.68 is: 377.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    450.77 : 621.83 = 273.68 : x
  2. Step 2: Convert to fraction form
    450.77/621.83 = 273.68/x
  3. Step 3: Cross multiply
    450.77x = 621.83 × 273.68
  4. Step 4: Simplify right side
    450.77x = 170,180.80
  5. Step 5: Solve for x
    x = 170,180.80/450.77
  6. Step 6: Final answer
    x = 377.54

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Find fourth proportional to 225.38, 310.91 and 136.84
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.