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Finding the Fourth Proportional to 114.75, 170.73 and 114.39

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Solution

The fourth proportional to 114.75, 170.73 and 114.39 is: 170.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.75 : 170.73 = 114.39 : x
  2. Step 2: Convert to fraction form
    114.75/170.73 = 114.39/x
  3. Step 3: Cross multiply
    114.75x = 170.73 × 114.39
  4. Step 4: Simplify right side
    114.75x = 19,529.80
  5. Step 5: Solve for x
    x = 19,529.80/114.75
  6. Step 6: Final answer
    x = 170.19

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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.