Finding the Fourth Proportional to 192,279.70, 288,160.35 and 128,919.70
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Solution
The fourth proportional to 192,279.70, 288,160.35 and 128,919.70 is: 193,205.76
Step by Step Solution
- Step 1: Write the proportion equation
192,279.70 : 288,160.35 = 128,919.70 : x - Step 2: Convert to fraction form
192,279.70/288,160.35 = 128,919.70/x - Step 3: Cross multiply
192,279.70x = 288,160.35 × 128,919.70 - Step 4: Simplify right side
192,279.70x = 37,149,545,873.90 - Step 5: Solve for x
x = 37,149,545,873.90/192,279.70 - Step 6: Final answer
x = 193,205.76
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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.