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Finding the Fourth Proportional to 170.04, 256.22 and 140.27

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Solution

The fourth proportional to 170.04, 256.22 and 140.27 is: 211.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.04 : 256.22 = 140.27 : x
  2. Step 2: Convert to fraction form
    170.04/256.22 = 140.27/x
  3. Step 3: Cross multiply
    170.04x = 256.22 × 140.27
  4. Step 4: Simplify right side
    170.04x = 35,939.98
  5. Step 5: Solve for x
    x = 35,939.98/170.04
  6. Step 6: Final answer
    x = 211.36

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.