Finding the Fourth Proportional to 215,843.70, 323,765.55 and 122,531.70
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Solution
The fourth proportional to 215,843.70, 323,765.55 and 122,531.70 is: 183,797.55
Step by Step Solution
- Step 1: Write the proportion equation
215,843.70 : 323,765.55 = 122,531.70 : x - Step 2: Convert to fraction form
215,843.70/323,765.55 = 122,531.70/x - Step 3: Cross multiply
215,843.70x = 323,765.55 × 122,531.70 - Step 4: Simplify right side
215,843.70x = 39,671,543,242.94 - Step 5: Solve for x
x = 39,671,543,242.94/215,843.70 - Step 6: Final answer
x = 183,797.55
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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.