Finding the Fourth Proportional to 288,854.40, 398,629.84 and 161,529.68
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Solution
The fourth proportional to 288,854.40, 398,629.84 and 161,529.68 is: 222,916.98
Step by Step Solution
- Step 1: Write the proportion equation
288,854.40 : 398,629.84 = 161,529.68 : x - Step 2: Convert to fraction form
288,854.40/398,629.84 = 161,529.68/x - Step 3: Cross multiply
288,854.40x = 398,629.84 × 161,529.68 - Step 4: Simplify right side
288,854.40x = 64,390,550,493.65 - Step 5: Solve for x
x = 64,390,550,493.65/288,854.40 - Step 6: Final answer
x = 222,916.98
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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.