Finding the Fourth Proportional to 186.10, 278.91 and 104.99
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Solution
The fourth proportional to 186.10, 278.91 and 104.99 is: 157.34
Step by Step Solution
- Step 1: Write the proportion equation
186.10 : 278.91 = 104.99 : x - Step 2: Convert to fraction form
186.10/278.91 = 104.99/x - Step 3: Cross multiply
186.10x = 278.91 × 104.99 - Step 4: Simplify right side
186.10x = 29,281.37 - Step 5: Solve for x
x = 29,281.37/186.10 - Step 6: Final answer
x = 157.34
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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.