Finding the Fourth Proportional to 545.67, 818.58 and 198.99
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Solution
The fourth proportional to 545.67, 818.58 and 198.99 is: 298.51
Step by Step Solution
- Step 1: Write the proportion equation
545.67 : 818.58 = 198.99 : x - Step 2: Convert to fraction form
545.67/818.58 = 198.99/x - Step 3: Cross multiply
545.67x = 818.58 × 198.99 - Step 4: Simplify right side
545.67x = 162,889.23 - Step 5: Solve for x
x = 162,889.23/545.67 - Step 6: Final answer
x = 298.51
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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.