Finding the Fourth Proportional to 243,813.20, 365,719.80 and 202,341.20
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Solution
The fourth proportional to 243,813.20, 365,719.80 and 202,341.20 is: 303,511.80
Step by Step Solution
- Step 1: Write the proportion equation
243,813.20 : 365,719.80 = 202,341.20 : x - Step 2: Convert to fraction form
243,813.20/365,719.80 = 202,341.20/x - Step 3: Cross multiply
243,813.20x = 365,719.80 × 202,341.20 - Step 4: Simplify right side
243,813.20x = 74,000,183,195.76 - Step 5: Solve for x
x = 74,000,183,195.76/243,813.20 - Step 6: Final answer
x = 303,511.80
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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.