Finding the Fourth Proportional to 261,324.26, 391,949.49 and 83,808.21
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Solution
The fourth proportional to 261,324.26, 391,949.49 and 83,808.21 is: 125,700.48
Step by Step Solution
- Step 1: Write the proportion equation
261,324.26 : 391,949.49 = 83,808.21 : x - Step 2: Convert to fraction form
261,324.26/391,949.49 = 83,808.21/x - Step 3: Cross multiply
261,324.26x = 391,949.49 × 83,808.21 - Step 4: Simplify right side
261,324.26x = 32,848,585,167.31 - Step 5: Solve for x
x = 32,848,585,167.31/261,324.26 - Step 6: Final answer
x = 125,700.48
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1.5x scale
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.