Finding the Fourth Proportional to 242,578.80, 363,868.20 and 135,853.20
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Solution
The fourth proportional to 242,578.80, 363,868.20 and 135,853.20 is: 203,779.80
Step by Step Solution
- Step 1: Write the proportion equation
242,578.80 : 363,868.20 = 135,853.20 : x - Step 2: Convert to fraction form
242,578.80/363,868.20 = 135,853.20/x - Step 3: Cross multiply
242,578.80x = 363,868.20 × 135,853.20 - Step 4: Simplify right side
242,578.80x = 49,432,659,348.24 - Step 5: Solve for x
x = 49,432,659,348.24/242,578.80 - Step 6: Final answer
x = 203,779.80
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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.