Finding the Fourth Proportional to 150.20, 207.08 and 122.52
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Solution
The fourth proportional to 150.20, 207.08 and 122.52 is: 168.92
Step by Step Solution
- Step 1: Write the proportion equation
150.20 : 207.08 = 122.52 : x - Step 2: Convert to fraction form
150.20/207.08 = 122.52/x - Step 3: Cross multiply
150.20x = 207.08 × 122.52 - Step 4: Simplify right side
150.20x = 25,371.44 - Step 5: Solve for x
x = 25,371.44/150.20 - Step 6: Final answer
x = 168.92
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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.