Finding the Fourth Proportional to 438,082.10, 656,345.55 and 271,675.70
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Solution
The fourth proportional to 438,082.10, 656,345.55 and 271,675.70 is: 407,031.32
Step by Step Solution
- Step 1: Write the proportion equation
438,082.10 : 656,345.55 = 271,675.70 : x - Step 2: Convert to fraction form
438,082.10/656,345.55 = 271,675.70/x - Step 3: Cross multiply
438,082.10x = 656,345.55 × 271,675.70 - Step 4: Simplify right side
438,082.10x = 178,313,136,738.14 - Step 5: Solve for x
x = 178,313,136,738.14/438,082.10 - Step 6: Final answer
x = 407,031.32
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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.