Finding the Fourth Proportional to 206,369.84, 284,669.72 and 129,767.70
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Solution
The fourth proportional to 206,369.84, 284,669.72 and 129,767.70 is: 179,003.55
Step by Step Solution
- Step 1: Write the proportion equation
206,369.84 : 284,669.72 = 129,767.70 : x - Step 2: Convert to fraction form
206,369.84/284,669.72 = 129,767.70/x - Step 3: Cross multiply
206,369.84x = 284,669.72 × 129,767.70 - Step 4: Simplify right side
206,369.84x = 36,940,934,824.04 - Step 5: Solve for x
x = 36,940,934,824.04/206,369.84 - Step 6: Final answer
x = 179,003.55
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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.