Finding the Fourth Proportional to 243,815.20, 365,722.80 and 202,343.20
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Solution
The fourth proportional to 243,815.20, 365,722.80 and 202,343.20 is: 303,514.80
Step by Step Solution
- Step 1: Write the proportion equation
243,815.20 : 365,722.80 = 202,343.20 : x - Step 2: Convert to fraction form
243,815.20/365,722.80 = 202,343.20/x - Step 3: Cross multiply
243,815.20x = 365,722.80 × 202,343.20 - Step 4: Simplify right side
243,815.20x = 74,001,521,664.96 - Step 5: Solve for x
x = 74,001,521,664.96/243,815.20 - Step 6: Final answer
x = 303,514.80
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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.