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Finding the Fourth Proportional to 182.16, 272.94 and 109.80

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Solution

The fourth proportional to 182.16, 272.94 and 109.80 is: 164.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.16 : 272.94 = 109.80 : x
  2. Step 2: Convert to fraction form
    182.16/272.94 = 109.80/x
  3. Step 3: Cross multiply
    182.16x = 272.94 × 109.80
  4. Step 4: Simplify right side
    182.16x = 29,968.81
  5. Step 5: Solve for x
    x = 29,968.81/182.16
  6. Step 6: Final answer
    x = 164.52

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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.