Finding the Fourth Proportional to 326,862.99, 490,322.70 and 90,205.65
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Solution
The fourth proportional to 326,862.99, 490,322.70 and 90,205.65 is: 135,316.26
Step by Step Solution
- Step 1: Write the proportion equation
326,862.99 : 490,322.70 = 90,205.65 : x - Step 2: Convert to fraction form
326,862.99/490,322.70 = 90,205.65/x - Step 3: Cross multiply
326,862.99x = 490,322.70 × 90,205.65 - Step 4: Simplify right side
326,862.99x = 44,229,877,863.26 - Step 5: Solve for x
x = 44,229,877,863.26/326,862.99 - Step 6: Final answer
x = 135,316.26
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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.