Finding the Fourth Proportional to 288,876.23, 398,749.39 and 198,531.26
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Solution
The fourth proportional to 288,876.23, 398,749.39 and 198,531.26 is: 274,041.99
Step by Step Solution
- Step 1: Write the proportion equation
288,876.23 : 398,749.39 = 198,531.26 : x - Step 2: Convert to fraction form
288,876.23/398,749.39 = 198,531.26/x - Step 3: Cross multiply
288,876.23x = 398,749.39 × 198,531.26 - Step 4: Simplify right side
288,876.23x = 79,164,216,330.86 - Step 5: Solve for x
x = 79,164,216,330.86/288,876.23 - Step 6: Final answer
x = 274,041.99
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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.