Finding the Fourth Proportional to 209,259.92, 288,781.62 and 113,766.68
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Solution
The fourth proportional to 209,259.92, 288,781.62 and 113,766.68 is: 156,999.61
Step by Step Solution
- Step 1: Write the proportion equation
209,259.92 : 288,781.62 = 113,766.68 : x - Step 2: Convert to fraction form
209,259.92/288,781.62 = 113,766.68/x - Step 3: Cross multiply
209,259.92x = 288,781.62 × 113,766.68 - Step 4: Simplify right side
209,259.92x = 32,853,726,152.42 - Step 5: Solve for x
x = 32,853,726,152.42/209,259.92 - Step 6: Final answer
x = 156,999.61
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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.