Finding the Fourth Proportional to 308,138.20, 462,207.30 and 108,683.80
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Solution
The fourth proportional to 308,138.20, 462,207.30 and 108,683.80 is: 163,025.70
Step by Step Solution
- Step 1: Write the proportion equation
308,138.20 : 462,207.30 = 108,683.80 : x - Step 2: Convert to fraction form
308,138.20/462,207.30 = 108,683.80/x - Step 3: Cross multiply
308,138.20x = 462,207.30 × 108,683.80 - Step 4: Simplify right side
308,138.20x = 50,234,445,751.74 - Step 5: Solve for x
x = 50,234,445,751.74/308,138.20 - Step 6: Final answer
x = 163,025.70
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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.