Finding the Fourth Proportional to 288,615.91, 398,291.43 and 161,293.63
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Solution
The fourth proportional to 288,615.91, 398,291.43 and 161,293.63 is: 222,586.03
Step by Step Solution
- Step 1: Write the proportion equation
288,615.91 : 398,291.43 = 161,293.63 : x - Step 2: Convert to fraction form
288,615.91/398,291.43 = 161,293.63/x - Step 3: Cross multiply
288,615.91x = 398,291.43 × 161,293.63 - Step 4: Simplify right side
288,615.91x = 64,241,870,542.59 - Step 5: Solve for x
x = 64,241,870,542.59/288,615.91 - Step 6: Final answer
x = 222,586.03
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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.