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Finding the Fourth Proportional to 170.87, 256.28 and 110.03

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Solution

The fourth proportional to 170.87, 256.28 and 110.03 is: 165.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.87 : 256.28 = 110.03 : x
  2. Step 2: Convert to fraction form
    170.87/256.28 = 110.03/x
  3. Step 3: Cross multiply
    170.87x = 256.28 × 110.03
  4. Step 4: Simplify right side
    170.87x = 28,198.49
  5. Step 5: Solve for x
    x = 28,198.49/170.87
  6. Step 6: Final answer
    x = 165.03

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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.