Finding the Fourth Proportional to 149.92, 206.91 and 94.68
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Solution
The fourth proportional to 149.92, 206.91 and 94.68 is: 130.67
Step by Step Solution
- Step 1: Write the proportion equation
149.92 : 206.91 = 94.68 : x - Step 2: Convert to fraction form
149.92/206.91 = 94.68/x - Step 3: Cross multiply
149.92x = 206.91 × 94.68 - Step 4: Simplify right side
149.92x = 19,590.24 - Step 5: Solve for x
x = 19,590.24/149.92 - Step 6: Final answer
x = 130.67
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.