Finding the Fourth Proportional to 252.99, 379.20 and 106.67
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Solution
The fourth proportional to 252.99, 379.20 and 106.67 is: 159.88
Step by Step Solution
- Step 1: Write the proportion equation
252.99 : 379.20 = 106.67 : x - Step 2: Convert to fraction form
252.99/379.20 = 106.67/x - Step 3: Cross multiply
252.99x = 379.20 × 106.67 - Step 4: Simplify right side
252.99x = 40,447.88 - Step 5: Solve for x
x = 40,447.88/252.99 - Step 6: Final answer
x = 159.88
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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.