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Finding the Fourth Proportional to 243.36, 335.89 and 150.19

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Solution

The fourth proportional to 243.36, 335.89 and 150.19 is: 207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.36 : 335.89 = 150.19 : x
  2. Step 2: Convert to fraction form
    243.36/335.89 = 150.19/x
  3. Step 3: Cross multiply
    243.36x = 335.89 × 150.19
  4. Step 4: Simplify right side
    243.36x = 50,447.32
  5. Step 5: Solve for x
    x = 50,447.32/243.36
  6. Step 6: Final answer
    x = 207.30

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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.