Finding the Fourth Proportional to 149.94, 207.08 and 122.01
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Solution
The fourth proportional to 149.94, 207.08 and 122.01 is: 168.50
Step by Step Solution
- Step 1: Write the proportion equation
149.94 : 207.08 = 122.01 : x - Step 2: Convert to fraction form
149.94/207.08 = 122.01/x - Step 3: Cross multiply
149.94x = 207.08 × 122.01 - Step 4: Simplify right side
149.94x = 25,265.57 - Step 5: Solve for x
x = 25,265.57/149.94 - Step 6: Final answer
x = 168.50
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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.