Finding the Fourth Proportional to 330,821.70, 496,232.55 and 315,269.70
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Solution
The fourth proportional to 330,821.70, 496,232.55 and 315,269.70 is: 472,904.55
Step by Step Solution
- Step 1: Write the proportion equation
330,821.70 : 496,232.55 = 315,269.70 : x - Step 2: Convert to fraction form
330,821.70/496,232.55 = 315,269.70/x - Step 3: Cross multiply
330,821.70x = 496,232.55 × 315,269.70 - Step 4: Simplify right side
330,821.70x = 156,447,087,168.74 - Step 5: Solve for x
x = 156,447,087,168.74/330,821.70 - Step 6: Final answer
x = 472,904.55
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1.5x scale
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.