Finding the Fourth Proportional to 288,954.47, 398,787.18 and 166,451.09
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Solution
The fourth proportional to 288,954.47, 398,787.18 and 166,451.09 is: 229,719.79
Step by Step Solution
- Step 1: Write the proportion equation
288,954.47 : 398,787.18 = 166,451.09 : x - Step 2: Convert to fraction form
288,954.47/398,787.18 = 166,451.09/x - Step 3: Cross multiply
288,954.47x = 398,787.18 × 166,451.09 - Step 4: Simplify right side
288,954.47x = 66,378,558,795.09 - Step 5: Solve for x
x = 66,378,558,795.09/288,954.47 - Step 6: Final answer
x = 229,719.79
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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.