Finding the Fourth Proportional to 381,320.97, 525,212.78 and 284,213.62
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Solution
The fourth proportional to 381,320.97, 525,212.78 and 284,213.62 is: 391,461.88
Step by Step Solution
- Step 1: Write the proportion equation
381,320.97 : 525,212.78 = 284,213.62 : x - Step 2: Convert to fraction form
381,320.97/525,212.78 = 284,213.62/x - Step 3: Cross multiply
381,320.97x = 525,212.78 × 284,213.62 - Step 4: Simplify right side
381,320.97x = 149,272,624,709.51 - Step 5: Solve for x
x = 149,272,624,709.51/381,320.97 - Step 6: Final answer
x = 391,461.88
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1.5x scale
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.