Finding the Fourth Proportional to 381,065.97, 571,599.93 and 128,523.84
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Solution
The fourth proportional to 381,065.97, 571,599.93 and 128,523.84 is: 192,786.09
Step by Step Solution
- Step 1: Write the proportion equation
381,065.97 : 571,599.93 = 128,523.84 : x - Step 2: Convert to fraction form
381,065.97/571,599.93 = 128,523.84/x - Step 3: Cross multiply
381,065.97x = 571,599.93 × 128,523.84 - Step 4: Simplify right side
381,065.97x = 73,464,217,947.33 - Step 5: Solve for x
x = 73,464,217,947.33/381,065.97 - Step 6: Final answer
x = 192,786.09
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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.