Finding the Fourth Proportional to 275,942.68, 380,802.42 and 161,228.06
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Solution
The fourth proportional to 275,942.68, 380,802.42 and 161,228.06 is: 222,495.61
Step by Step Solution
- Step 1: Write the proportion equation
275,942.68 : 380,802.42 = 161,228.06 : x - Step 2: Convert to fraction form
275,942.68/380,802.42 = 161,228.06/x - Step 3: Cross multiply
275,942.68x = 380,802.42 × 161,228.06 - Step 4: Simplify right side
275,942.68x = 61,396,035,419.91 - Step 5: Solve for x
x = 61,396,035,419.91/275,942.68 - Step 6: Final answer
x = 222,495.61
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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.