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Finding the Fourth Proportional to 243.06, 335.54 and 159.08

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Solution

The fourth proportional to 243.06, 335.54 and 159.08 is: 219.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.06 : 335.54 = 159.08 : x
  2. Step 2: Convert to fraction form
    243.06/335.54 = 159.08/x
  3. Step 3: Cross multiply
    243.06x = 335.54 × 159.08
  4. Step 4: Simplify right side
    243.06x = 53,375.23
  5. Step 5: Solve for x
    x = 53,375.23/243.06
  6. Step 6: Final answer
    x = 219.60

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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.