Finding the Fourth Proportional to 664,721.10, 996,872.51 and 215,337.70
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Solution
The fourth proportional to 664,721.10, 996,872.51 and 215,337.70 is: 322,938.80
Step by Step Solution
- Step 1: Write the proportion equation
664,721.10 : 996,872.51 = 215,337.70 : x - Step 2: Convert to fraction form
664,721.10/996,872.51 = 215,337.70/x - Step 3: Cross multiply
664,721.10x = 996,872.51 × 215,337.70 - Step 4: Simplify right side
664,721.10x = 214,664,233,496.63 - Step 5: Solve for x
x = 214,664,233,496.63/664,721.10 - Step 6: Final answer
x = 322,938.80
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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.