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Finding the Fourth Proportional to 170.98, 254.83 and 170.71

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Solution

The fourth proportional to 170.98, 254.83 and 170.71 is: 254.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.98 : 254.83 = 170.71 : x
  2. Step 2: Convert to fraction form
    170.98/254.83 = 170.71/x
  3. Step 3: Cross multiply
    170.98x = 254.83 × 170.71
  4. Step 4: Simplify right side
    170.98x = 43,502.03
  5. Step 5: Solve for x
    x = 43,502.03/170.98
  6. Step 6: Final answer
    x = 254.43

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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.