Finding the Fourth Proportional to 284,966.75, 393,220.09 and 157,625.03
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Solution
The fourth proportional to 284,966.75, 393,220.09 and 157,625.03 is: 217,503.72
Step by Step Solution
- Step 1: Write the proportion equation
284,966.75 : 393,220.09 = 157,625.03 : x - Step 2: Convert to fraction form
284,966.75/393,220.09 = 157,625.03/x - Step 3: Cross multiply
284,966.75x = 393,220.09 × 157,625.03 - Step 4: Simplify right side
284,966.75x = 61,981,328,482.85 - Step 5: Solve for x
x = 61,981,328,482.85/284,966.75 - Step 6: Final answer
x = 217,503.72
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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.