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Finding the Fourth Proportional to 182.16, 250.83 and 161.55

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Solution

The fourth proportional to 182.16, 250.83 and 161.55 is: 222.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.16 : 250.83 = 161.55 : x
  2. Step 2: Convert to fraction form
    182.16/250.83 = 161.55/x
  3. Step 3: Cross multiply
    182.16x = 250.83 × 161.55
  4. Step 4: Simplify right side
    182.16x = 40,521.59
  5. Step 5: Solve for x
    x = 40,521.59/182.16
  6. Step 6: Final answer
    x = 222.45

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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.