Finding the Fourth Proportional to 191.14, 286.08 and 156.99
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Solution
The fourth proportional to 191.14, 286.08 and 156.99 is: 234.97
Step by Step Solution
- Step 1: Write the proportion equation
191.14 : 286.08 = 156.99 : x - Step 2: Convert to fraction form
191.14/286.08 = 156.99/x - Step 3: Cross multiply
191.14x = 286.08 × 156.99 - Step 4: Simplify right side
191.14x = 44,911.70 - Step 5: Solve for x
x = 44,911.70/191.14 - Step 6: Final answer
x = 234.97
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.