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Finding the Fourth Proportional to 171.03, 235.99 and 104.65

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Solution

The fourth proportional to 171.03, 235.99 and 104.65 is: 144.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.03 : 235.99 = 104.65 : x
  2. Step 2: Convert to fraction form
    171.03/235.99 = 104.65/x
  3. Step 3: Cross multiply
    171.03x = 235.99 × 104.65
  4. Step 4: Simplify right side
    171.03x = 24,696.35
  5. Step 5: Solve for x
    x = 24,696.35/171.03
  6. Step 6: Final answer
    x = 144.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.