Finding the Fourth Proportional to 288,889.12, 398,682.48 and 161,557.12
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Solution
The fourth proportional to 288,889.12, 398,682.48 and 161,557.12 is: 222,957.49
Step by Step Solution
- Step 1: Write the proportion equation
288,889.12 : 398,682.48 = 161,557.12 : x - Step 2: Convert to fraction form
288,889.12/398,682.48 = 161,557.12/x - Step 3: Cross multiply
288,889.12x = 398,682.48 × 161,557.12 - Step 4: Simplify right side
288,889.12x = 64,409,993,263.26 - Step 5: Solve for x
x = 64,409,993,263.26/288,889.12 - Step 6: Final answer
x = 222,957.49
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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.