Finding the Fourth Proportional to 204,781.97, 306,974.48 and 78,324.84
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Solution
The fourth proportional to 204,781.97, 306,974.48 and 78,324.84 is: 117,411.34
Step by Step Solution
- Step 1: Write the proportion equation
204,781.97 : 306,974.48 = 78,324.84 : x - Step 2: Convert to fraction form
204,781.97/306,974.48 = 78,324.84/x - Step 3: Cross multiply
204,781.97x = 306,974.48 × 78,324.84 - Step 4: Simplify right side
204,781.97x = 24,043,726,638.46 - Step 5: Solve for x
x = 24,043,726,638.46/204,781.97 - Step 6: Final answer
x = 117,411.34
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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.