Finding the Fourth Proportional to 543,438.05, 815,183.28 and 178,691.58
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Solution
The fourth proportional to 543,438.05, 815,183.28 and 178,691.58 is: 268,045.99
Step by Step Solution
- Step 1: Write the proportion equation
543,438.05 : 815,183.28 = 178,691.58 : x - Step 2: Convert to fraction form
543,438.05/815,183.28 = 178,691.58/x - Step 3: Cross multiply
543,438.05x = 815,183.28 × 178,691.58 - Step 4: Simplify right side
543,438.05x = 145,666,388,292.78 - Step 5: Solve for x
x = 145,666,388,292.78/543,438.05 - Step 6: Final answer
x = 268,045.99
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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.