Finding the Fourth Proportional to 287,247.18, 431,067.66 and 100,258.68
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Solution
The fourth proportional to 287,247.18, 431,067.66 and 100,258.68 is: 150,456.74
Step by Step Solution
- Step 1: Write the proportion equation
287,247.18 : 431,067.66 = 100,258.68 : x - Step 2: Convert to fraction form
287,247.18/431,067.66 = 100,258.68/x - Step 3: Cross multiply
287,247.18x = 431,067.66 × 100,258.68 - Step 4: Simplify right side
287,247.18x = 43,218,274,582.29 - Step 5: Solve for x
x = 43,218,274,582.29/287,247.18 - Step 6: Final answer
x = 150,456.74
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.