Finding the Fourth Proportional to 288,877.23, 398,750.78 and 198,532.26
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Solution
The fourth proportional to 288,877.23, 398,750.78 and 198,532.26 is: 274,043.38
Step by Step Solution
- Step 1: Write the proportion equation
288,877.23 : 398,750.78 = 198,532.26 : x - Step 2: Convert to fraction form
288,877.23/398,750.78 = 198,532.26/x - Step 3: Cross multiply
288,877.23x = 398,750.78 × 198,532.26 - Step 4: Simplify right side
288,877.23x = 79,164,890,543.75 - Step 5: Solve for x
x = 79,164,890,543.75/288,877.23 - Step 6: Final answer
x = 274,043.38
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1.5x scale
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.