Finding the Fourth Proportional to 321,986.10, 482,979.15 and 202,235.70
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Solution
The fourth proportional to 321,986.10, 482,979.15 and 202,235.70 is: 303,353.55
Step by Step Solution
- Step 1: Write the proportion equation
321,986.10 : 482,979.15 = 202,235.70 : x - Step 2: Convert to fraction form
321,986.10/482,979.15 = 202,235.70/x - Step 3: Cross multiply
321,986.10x = 482,979.15 × 202,235.70 - Step 4: Simplify right side
321,986.10x = 97,675,626,485.66 - Step 5: Solve for x
x = 97,675,626,485.66/321,986.10 - Step 6: Final answer
x = 303,353.55
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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.