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Finding the Fourth Proportional to 171.10, 255.29 and 144.10

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Solution

The fourth proportional to 171.10, 255.29 and 144.10 is: 215.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.10 : 255.29 = 144.10 : x
  2. Step 2: Convert to fraction form
    171.10/255.29 = 144.10/x
  3. Step 3: Cross multiply
    171.10x = 255.29 × 144.10
  4. Step 4: Simplify right side
    171.10x = 36,787.29
  5. Step 5: Solve for x
    x = 36,787.29/171.10
  6. Step 6: Final answer
    x = 215.00

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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.