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Finding the Fourth Proportional to 272.99, 376.75 and 168.05

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Solution

The fourth proportional to 272.99, 376.75 and 168.05 is: 231.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.99 : 376.75 = 168.05 : x
  2. Step 2: Convert to fraction form
    272.99/376.75 = 168.05/x
  3. Step 3: Cross multiply
    272.99x = 376.75 × 168.05
  4. Step 4: Simplify right side
    272.99x = 63,314.93
  5. Step 5: Solve for x
    x = 63,314.93/272.99
  6. Step 6: Final answer
    x = 231.93

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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.