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Finding the Fourth Proportional to 188.49, 281.36 and 162.52

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Solution

The fourth proportional to 188.49, 281.36 and 162.52 is: 242.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.49 : 281.36 = 162.52 : x
  2. Step 2: Convert to fraction form
    188.49/281.36 = 162.52/x
  3. Step 3: Cross multiply
    188.49x = 281.36 × 162.52
  4. Step 4: Simplify right side
    188.49x = 45,727.00
  5. Step 5: Solve for x
    x = 45,727.00/188.49
  6. Step 6: Final answer
    x = 242.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.