Finding the Fourth Proportional to 372,220.70, 513,660.72 and 202,454.78
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Solution
The fourth proportional to 372,220.70, 513,660.72 and 202,454.78 is: 279,385.50
Step by Step Solution
- Step 1: Write the proportion equation
372,220.70 : 513,660.72 = 202,454.78 : x - Step 2: Convert to fraction form
372,220.70/513,660.72 = 202,454.78/x - Step 3: Cross multiply
372,220.70x = 513,660.72 × 202,454.78 - Step 4: Simplify right side
372,220.70x = 103,993,068,062.24 - Step 5: Solve for x
x = 103,993,068,062.24/372,220.70 - Step 6: Final answer
x = 279,385.50
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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.