Finding the Fourth Proportional to 150.26, 207.09 and 122.45
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Solution
The fourth proportional to 150.26, 207.09 and 122.45 is: 168.76
Step by Step Solution
- Step 1: Write the proportion equation
150.26 : 207.09 = 122.45 : x - Step 2: Convert to fraction form
150.26/207.09 = 122.45/x - Step 3: Cross multiply
150.26x = 207.09 × 122.45 - Step 4: Simplify right side
150.26x = 25,357.14 - Step 5: Solve for x
x = 25,357.14/150.26 - Step 6: Final answer
x = 168.76
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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.