Finding the Fourth Proportional to 192,691.20, 288,907.20 and 102,748.80
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Solution
The fourth proportional to 192,691.20, 288,907.20 and 102,748.80 is: 154,054.09
Step by Step Solution
- Step 1: Write the proportion equation
192,691.20 : 288,907.20 = 102,748.80 : x - Step 2: Convert to fraction form
192,691.20/288,907.20 = 102,748.80/x - Step 3: Cross multiply
192,691.20x = 288,907.20 × 102,748.80 - Step 4: Simplify right side
192,691.20x = 29,684,868,111.36 - Step 5: Solve for x
x = 29,684,868,111.36/192,691.20 - Step 6: Final answer
x = 154,054.09
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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.