Finding the Fourth Proportional to 216,049.70, 323,799.15 and 121,279.70
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Solution
The fourth proportional to 216,049.70, 323,799.15 and 121,279.70 is: 181,764.95
Step by Step Solution
- Step 1: Write the proportion equation
216,049.70 : 323,799.15 = 121,279.70 : x - Step 2: Convert to fraction form
216,049.70/323,799.15 = 121,279.70/x - Step 3: Cross multiply
216,049.70x = 323,799.15 × 121,279.70 - Step 4: Simplify right side
216,049.70x = 39,270,263,772.26 - Step 5: Solve for x
x = 39,270,263,772.26/216,049.70 - Step 6: Final answer
x = 181,764.95
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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.