Finding the Fourth Proportional to 328,191.26, 492,286.97 and 103,569.20
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Solution
The fourth proportional to 328,191.26, 492,286.97 and 103,569.20 is: 155,353.82
Step by Step Solution
- Step 1: Write the proportion equation
328,191.26 : 492,286.97 = 103,569.20 : x - Step 2: Convert to fraction form
328,191.26/492,286.97 = 103,569.20/x - Step 3: Cross multiply
328,191.26x = 492,286.97 × 103,569.20 - Step 4: Simplify right side
328,191.26x = 50,985,766,714.31 - Step 5: Solve for x
x = 50,985,766,714.31/328,191.26 - Step 6: Final answer
x = 155,353.82
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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.