Finding the Fourth Proportional to 237,475.26, 327,711.89 and 128,578.70
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Solution
The fourth proportional to 237,475.26, 327,711.89 and 128,578.70 is: 177,436.46
Step by Step Solution
- Step 1: Write the proportion equation
237,475.26 : 327,711.89 = 128,578.70 : x - Step 2: Convert to fraction form
237,475.26/327,711.89 = 128,578.70/x - Step 3: Cross multiply
237,475.26x = 327,711.89 × 128,578.70 - Step 4: Simplify right side
237,475.26x = 42,136,768,790.74 - Step 5: Solve for x
x = 42,136,768,790.74/237,475.26 - Step 6: Final answer
x = 177,436.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.