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Finding the Fourth Proportional to 182.69, 273.98 and 128.33

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Solution

The fourth proportional to 182.69, 273.98 and 128.33 is: 192.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.69 : 273.98 = 128.33 : x
  2. Step 2: Convert to fraction form
    182.69/273.98 = 128.33/x
  3. Step 3: Cross multiply
    182.69x = 273.98 × 128.33
  4. Step 4: Simplify right side
    182.69x = 35,158.48
  5. Step 5: Solve for x
    x = 35,158.48/182.69
  6. Step 6: Final answer
    x = 192.45

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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.