Finding the Fourth Proportional to 288,815.63, 398,574.68 and 161,490.92
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Solution
The fourth proportional to 288,815.63, 398,574.68 and 161,490.92 is: 222,862.56
Step by Step Solution
- Step 1: Write the proportion equation
288,815.63 : 398,574.68 = 161,490.92 : x - Step 2: Convert to fraction form
288,815.63/398,574.68 = 161,490.92/x - Step 3: Cross multiply
288,815.63x = 398,574.68 × 161,490.92 - Step 4: Simplify right side
288,815.63x = 64,366,188,961.58 - Step 5: Solve for x
x = 64,366,188,961.58/288,815.63 - Step 6: Final answer
x = 222,862.56
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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.