Finding the Fourth Proportional to 288,556.14, 398,206.64 and 161,231.84
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Solution
The fourth proportional to 288,556.14, 398,206.64 and 161,231.84 is: 222,499.47
Step by Step Solution
- Step 1: Write the proportion equation
288,556.14 : 398,206.64 = 161,231.84 : x - Step 2: Convert to fraction form
288,556.14/398,206.64 = 161,231.84/x - Step 3: Cross multiply
288,556.14x = 398,206.64 × 161,231.84 - Step 4: Simplify right side
288,556.14x = 64,203,589,267.42 - Step 5: Solve for x
x = 64,203,589,267.42/288,556.14 - Step 6: Final answer
x = 222,499.47
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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.