Finding the Fourth Proportional to 288,291.65, 397,867.07 and 160,991.84
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Solution
The fourth proportional to 288,291.65, 397,867.07 and 160,991.84 is: 222,182.47
Step by Step Solution
- Step 1: Write the proportion equation
288,291.65 : 397,867.07 = 160,991.84 : x - Step 2: Convert to fraction form
288,291.65/397,867.07 = 160,991.84/x - Step 3: Cross multiply
288,291.65x = 397,867.07 × 160,991.84 - Step 4: Simplify right side
288,291.65x = 64,053,350,869.75 - Step 5: Solve for x
x = 64,053,350,869.75/288,291.65 - Step 6: Final answer
x = 222,182.47
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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.