Finding the Fourth Proportional to 209,186.68, 313,653.42 and 84,381.88
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Solution
The fourth proportional to 209,186.68, 313,653.42 and 84,381.88 is: 126,521.75
Step by Step Solution
- Step 1: Write the proportion equation
209,186.68 : 313,653.42 = 84,381.88 : x - Step 2: Convert to fraction form
209,186.68/313,653.42 = 84,381.88/x - Step 3: Cross multiply
209,186.68x = 313,653.42 × 84,381.88 - Step 4: Simplify right side
209,186.68x = 26,466,665,248.03 - Step 5: Solve for x
x = 26,466,665,248.03/209,186.68 - Step 6: Final answer
x = 126,521.75
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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.