Finding the Fourth Proportional to 288,655.92, 398,338.29 and 161,343.36
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Solution
The fourth proportional to 288,655.92, 398,338.29 and 161,343.36 is: 222,649.99
Step by Step Solution
- Step 1: Write the proportion equation
288,655.92 : 398,338.29 = 161,343.36 : x - Step 2: Convert to fraction form
288,655.92/398,338.29 = 161,343.36/x - Step 3: Cross multiply
288,655.92x = 398,338.29 × 161,343.36 - Step 4: Simplify right side
288,655.92x = 64,269,238,125.25 - Step 5: Solve for x
x = 64,269,238,125.25/288,655.92 - Step 6: Final answer
x = 222,649.99
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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.