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Finding the Fourth Proportional to 170.71, 254.54 and 168.58

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Solution

The fourth proportional to 170.71, 254.54 and 168.58 is: 251.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.71 : 254.54 = 168.58 : x
  2. Step 2: Convert to fraction form
    170.71/254.54 = 168.58/x
  3. Step 3: Cross multiply
    170.71x = 254.54 × 168.58
  4. Step 4: Simplify right side
    170.71x = 42,911.09
  5. Step 5: Solve for x
    x = 42,911.09/170.71
  6. Step 6: Final answer
    x = 251.37

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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.