Finding the Fourth Proportional to 387,131.70, 580,778.37 and 195,114.05
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Solution
The fourth proportional to 387,131.70, 580,778.37 and 195,114.05 is: 292,711.80
Step by Step Solution
- Step 1: Write the proportion equation
387,131.70 : 580,778.37 = 195,114.05 : x - Step 2: Convert to fraction form
387,131.70/580,778.37 = 195,114.05/x - Step 3: Cross multiply
387,131.70x = 580,778.37 × 195,114.05 - Step 4: Simplify right side
387,131.70x = 113,318,017,019.21 - Step 5: Solve for x
x = 113,318,017,019.21/387,131.70 - Step 6: Final answer
x = 292,711.80
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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.