Finding the Fourth Proportional to 186.99, 279.92 and 162.99
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Solution
The fourth proportional to 186.99, 279.92 and 162.99 is: 243.99
Step by Step Solution
- Step 1: Write the proportion equation
186.99 : 279.92 = 162.99 : x - Step 2: Convert to fraction form
186.99/279.92 = 162.99/x - Step 3: Cross multiply
186.99x = 279.92 × 162.99 - Step 4: Simplify right side
186.99x = 45,623.35 - Step 5: Solve for x
x = 45,623.35/186.99 - Step 6: Final answer
x = 243.99
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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.