Finding the Fourth Proportional to 326,844.30, 490,294.71 and 90,186.99
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Solution
The fourth proportional to 326,844.30, 490,294.71 and 90,186.99 is: 135,288.28
Step by Step Solution
- Step 1: Write the proportion equation
326,844.30 : 490,294.71 = 90,186.99 : x - Step 2: Convert to fraction form
326,844.30/490,294.71 = 90,186.99/x - Step 3: Cross multiply
326,844.30x = 490,294.71 × 90,186.99 - Step 4: Simplify right side
326,844.30x = 44,218,204,107.82 - Step 5: Solve for x
x = 44,218,204,107.82/326,844.30 - Step 6: Final answer
x = 135,288.28
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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.