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Finding the Fourth Proportional to 273.69, 377.28 and 220.77

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Solution

The fourth proportional to 273.69, 377.28 and 220.77 is: 304.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.69 : 377.28 = 220.77 : x
  2. Step 2: Convert to fraction form
    273.69/377.28 = 220.77/x
  3. Step 3: Cross multiply
    273.69x = 377.28 × 220.77
  4. Step 4: Simplify right side
    273.69x = 83,292.11
  5. Step 5: Solve for x
    x = 83,292.11/273.69
  6. Step 6: Final answer
    x = 304.33

Related Problems

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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.