Finding the Fourth Proportional to 343,741.82, 515,637.57 and 143,861.09
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Solution
The fourth proportional to 343,741.82, 515,637.57 and 143,861.09 is: 215,802.03
Step by Step Solution
- Step 1: Write the proportion equation
343,741.82 : 515,637.57 = 143,861.09 : x - Step 2: Convert to fraction form
343,741.82/515,637.57 = 143,861.09/x - Step 3: Cross multiply
343,741.82x = 515,637.57 × 143,861.09 - Step 4: Simplify right side
343,741.82x = 74,180,182,865.15 - Step 5: Solve for x
x = 74,180,182,865.15/343,741.82 - Step 6: Final answer
x = 215,802.03
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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.