Finding the Fourth Proportional to 391,198.76, 586,728.77 and 177,916.71
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Solution
The fourth proportional to 391,198.76, 586,728.77 and 177,916.71 is: 266,843.52
Step by Step Solution
- Step 1: Write the proportion equation
391,198.76 : 586,728.77 = 177,916.71 : x - Step 2: Convert to fraction form
391,198.76/586,728.77 = 177,916.71/x - Step 3: Cross multiply
391,198.76x = 586,728.77 × 177,916.71 - Step 4: Simplify right side
391,198.76x = 104,388,852,420.75 - Step 5: Solve for x
x = 104,388,852,420.75/391,198.76 - Step 6: Final answer
x = 266,843.52
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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.