Finding the Fourth Proportional to 289,414.84, 431,555.87 and 270,110.92
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Solution
The fourth proportional to 289,414.84, 431,555.87 and 270,110.92 is: 402,771.17
Step by Step Solution
- Step 1: Write the proportion equation
289,414.84 : 431,555.87 = 270,110.92 : x - Step 2: Convert to fraction form
289,414.84/431,555.87 = 270,110.92/x - Step 3: Cross multiply
289,414.84x = 431,555.87 × 270,110.92 - Step 4: Simplify right side
289,414.84x = 116,567,953,077.10 - Step 5: Solve for x
x = 116,567,953,077.10/289,414.84 - Step 6: Final answer
x = 402,771.17
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.