Finding the Fourth Proportional to 421,175.26, 581,213.23 and 230,190.02
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Solution
The fourth proportional to 421,175.26, 581,213.23 and 230,190.02 is: 317,657.51
Step by Step Solution
- Step 1: Write the proportion equation
421,175.26 : 581,213.23 = 230,190.02 : x - Step 2: Convert to fraction form
421,175.26/581,213.23 = 230,190.02/x - Step 3: Cross multiply
421,175.26x = 581,213.23 × 230,190.02 - Step 4: Simplify right side
421,175.26x = 133,789,485,037.97 - Step 5: Solve for x
x = 133,789,485,037.97/421,175.26 - Step 6: Final answer
x = 317,657.51
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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.