Finding the Fourth Proportional to 209,785.80, 314,777.12 and 104,612.97
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Solution
The fourth proportional to 209,785.80, 314,777.12 and 104,612.97 is: 156,968.53
Step by Step Solution
- Step 1: Write the proportion equation
209,785.80 : 314,777.12 = 104,612.97 : x - Step 2: Convert to fraction form
209,785.80/314,777.12 = 104,612.97/x - Step 3: Cross multiply
209,785.80x = 314,777.12 × 104,612.97 - Step 4: Simplify right side
209,785.80x = 32,929,769,411.25 - Step 5: Solve for x
x = 32,929,769,411.25/209,785.80 - Step 6: Final answer
x = 156,968.53
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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.