Finding the Fourth Proportional to 261,504.74, 392,205.47 and 71,916.19
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Solution
The fourth proportional to 261,504.74, 392,205.47 and 71,916.19 is: 107,860.08
Step by Step Solution
- Step 1: Write the proportion equation
261,504.74 : 392,205.47 = 71,916.19 : x - Step 2: Convert to fraction form
261,504.74/392,205.47 = 71,916.19/x - Step 3: Cross multiply
261,504.74x = 392,205.47 × 71,916.19 - Step 4: Simplify right side
261,504.74x = 28,205,921,759.46 - Step 5: Solve for x
x = 28,205,921,759.46/261,504.74 - Step 6: Final answer
x = 107,860.08
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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.