Finding the Fourth Proportional to 326,863.99, 490,324.20 and 90,206.65
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Solution
The fourth proportional to 326,863.99, 490,324.20 and 90,206.65 is: 135,317.76
Step by Step Solution
- Step 1: Write the proportion equation
326,863.99 : 490,324.20 = 90,206.65 : x - Step 2: Convert to fraction form
326,863.99/490,324.20 = 90,206.65/x - Step 3: Cross multiply
326,863.99x = 490,324.20 × 90,206.65 - Step 4: Simplify right side
326,863.99x = 44,230,503,495.93 - Step 5: Solve for x
x = 44,230,503,495.93/326,863.99 - Step 6: Final answer
x = 135,317.76
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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.