Finding the Fourth Proportional to 215,428.37, 323,290.20 and 75,186.99
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Solution
The fourth proportional to 215,428.37, 323,290.20 and 75,186.99 is: 112,832.02
Step by Step Solution
- Step 1: Write the proportion equation
215,428.37 : 323,290.20 = 75,186.99 : x - Step 2: Convert to fraction form
215,428.37/323,290.20 = 75,186.99/x - Step 3: Cross multiply
215,428.37x = 323,290.20 × 75,186.99 - Step 4: Simplify right side
215,428.37x = 24,307,217,034.50 - Step 5: Solve for x
x = 24,307,217,034.50/215,428.37 - Step 6: Final answer
x = 112,832.02
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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.