Finding the Fourth Proportional to 149.96, 206.99 and 94.70
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Solution
The fourth proportional to 149.96, 206.99 and 94.70 is: 130.71
Step by Step Solution
- Step 1: Write the proportion equation
149.96 : 206.99 = 94.70 : x - Step 2: Convert to fraction form
149.96/206.99 = 94.70/x - Step 3: Cross multiply
149.96x = 206.99 × 94.70 - Step 4: Simplify right side
149.96x = 19,600.92 - Step 5: Solve for x
x = 19,600.92/149.96 - Step 6: Final answer
x = 130.71
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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.