Finding the Fourth Proportional to 149.44, 206.14 and 94.08
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Solution
The fourth proportional to 149.44, 206.14 and 94.08 is: 129.78
Step by Step Solution
- Step 1: Write the proportion equation
149.44 : 206.14 = 94.08 : x - Step 2: Convert to fraction form
149.44/206.14 = 94.08/x - Step 3: Cross multiply
149.44x = 206.14 × 94.08 - Step 4: Simplify right side
149.44x = 19,393.42 - Step 5: Solve for x
x = 19,393.42/149.44 - Step 6: Final answer
x = 129.78
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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.