Finding the Fourth Proportional to 273,920.87, 378,048.34 and 157,631.94
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Solution
The fourth proportional to 273,920.87, 378,048.34 and 157,631.94 is: 217,553.69
Step by Step Solution
- Step 1: Write the proportion equation
273,920.87 : 378,048.34 = 157,631.94 : x - Step 2: Convert to fraction form
273,920.87/378,048.34 = 157,631.94/x - Step 3: Cross multiply
273,920.87x = 378,048.34 × 157,631.94 - Step 4: Simplify right side
273,920.87x = 59,592,494,862.70 - Step 5: Solve for x
x = 59,592,494,862.70/273,920.87 - Step 6: Final answer
x = 217,553.69
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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.