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Finding the Fourth Proportional to 188.81, 283.29 and 181.05

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Solution

The fourth proportional to 188.81, 283.29 and 181.05 is: 271.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.81 : 283.29 = 181.05 : x
  2. Step 2: Convert to fraction form
    188.81/283.29 = 181.05/x
  3. Step 3: Cross multiply
    188.81x = 283.29 × 181.05
  4. Step 4: Simplify right side
    188.81x = 51,288.75
  5. Step 5: Solve for x
    x = 51,288.75/188.81
  6. Step 6: Final answer
    x = 271.64

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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.