Finding the Fourth Proportional to 379,305.73, 523,397.28 and 209,529.73
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Solution
The fourth proportional to 379,305.73, 523,397.28 and 209,529.73 is: 289,126.38
Step by Step Solution
- Step 1: Write the proportion equation
379,305.73 : 523,397.28 = 209,529.73 : x - Step 2: Convert to fraction form
379,305.73/523,397.28 = 209,529.73/x - Step 3: Cross multiply
379,305.73x = 523,397.28 × 209,529.73 - Step 4: Simplify right side
379,305.73x = 109,667,290,761.13 - Step 5: Solve for x
x = 109,667,290,761.13/379,305.73 - Step 6: Final answer
x = 289,126.38
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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.