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Finding the Fourth Proportional to 183.68, 272.48 and 180.80

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Solution

The fourth proportional to 183.68, 272.48 and 180.80 is: 268.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.68 : 272.48 = 180.80 : x
  2. Step 2: Convert to fraction form
    183.68/272.48 = 180.80/x
  3. Step 3: Cross multiply
    183.68x = 272.48 × 180.80
  4. Step 4: Simplify right side
    183.68x = 49,264.38
  5. Step 5: Solve for x
    x = 49,264.38/183.68
  6. Step 6: Final answer
    x = 268.21

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.