Finding the Fourth Proportional to 438,021.10, 656,578.05 and 237,918.70
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Solution
The fourth proportional to 438,021.10, 656,578.05 and 237,918.70 is: 356,631.67
Step by Step Solution
- Step 1: Write the proportion equation
438,021.10 : 656,578.05 = 237,918.70 : x - Step 2: Convert to fraction form
438,021.10/656,578.05 = 237,918.70/x - Step 3: Cross multiply
438,021.10x = 656,578.05 × 237,918.70 - Step 4: Simplify right side
438,021.10x = 156,212,196,104.54 - Step 5: Solve for x
x = 156,212,196,104.54/438,021.10 - Step 6: Final answer
x = 356,631.67
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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.