Finding the Fourth Proportional to 362.18, 543.36 and 131.18
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Solution
The fourth proportional to 362.18, 543.36 and 131.18 is: 196.80
Step by Step Solution
- Step 1: Write the proportion equation
362.18 : 543.36 = 131.18 : x - Step 2: Convert to fraction form
362.18/543.36 = 131.18/x - Step 3: Cross multiply
362.18x = 543.36 × 131.18 - Step 4: Simplify right side
362.18x = 71,277.96 - Step 5: Solve for x
x = 71,277.96/362.18 - Step 6: Final answer
x = 196.80
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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.