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Finding the Fourth Proportional to 188.01, 281.66 and 168.99

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Solution

The fourth proportional to 188.01, 281.66 and 168.99 is: 253.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.01 : 281.66 = 168.99 : x
  2. Step 2: Convert to fraction form
    188.01/281.66 = 168.99/x
  3. Step 3: Cross multiply
    188.01x = 281.66 × 168.99
  4. Step 4: Simplify right side
    188.01x = 47,596.88
  5. Step 5: Solve for x
    x = 47,596.88/188.01
  6. Step 6: Final answer
    x = 253.16

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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.