Finding the Fourth Proportional to 288,562.18, 398,217.81 and 161,243.14
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Solution
The fourth proportional to 288,562.18, 398,217.81 and 161,243.14 is: 222,516.65
Step by Step Solution
- Step 1: Write the proportion equation
288,562.18 : 398,217.81 = 161,243.14 : x - Step 2: Convert to fraction form
288,562.18/398,217.81 = 161,243.14/x - Step 3: Cross multiply
288,562.18x = 398,217.81 × 161,243.14 - Step 4: Simplify right side
288,562.18x = 64,209,890,088.32 - Step 5: Solve for x
x = 64,209,890,088.32/288,562.18 - Step 6: Final answer
x = 222,516.65
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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.