Finding the Fourth Proportional to 288,614.91, 398,290.05 and 161,292.63
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Solution
The fourth proportional to 288,614.91, 398,290.05 and 161,292.63 is: 222,584.65
Step by Step Solution
- Step 1: Write the proportion equation
288,614.91 : 398,290.05 = 161,292.63 : x - Step 2: Convert to fraction form
288,614.91/398,290.05 = 161,292.63/x - Step 3: Cross multiply
288,614.91x = 398,290.05 × 161,292.63 - Step 4: Simplify right side
288,614.91x = 64,241,249,667.33 - Step 5: Solve for x
x = 64,241,249,667.33/288,614.91 - Step 6: Final answer
x = 222,584.65
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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.