Finding the Fourth Proportional to 275,871.79, 380,690.92 and 161,161.08
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Solution
The fourth proportional to 275,871.79, 380,690.92 and 161,161.08 is: 222,395.19
Step by Step Solution
- Step 1: Write the proportion equation
275,871.79 : 380,690.92 = 161,161.08 : x - Step 2: Convert to fraction form
275,871.79/380,690.92 = 161,161.08/x - Step 3: Cross multiply
275,871.79x = 380,690.92 × 161,161.08 - Step 4: Simplify right side
275,871.79x = 61,352,558,587.25 - Step 5: Solve for x
x = 61,352,558,587.25/275,871.79 - Step 6: Final answer
x = 222,395.19
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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.