Finding the Fourth Proportional to 289,691.80, 434,537.70 and 201,218.20
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Solution
The fourth proportional to 289,691.80, 434,537.70 and 201,218.20 is: 301,827.30
Step by Step Solution
- Step 1: Write the proportion equation
289,691.80 : 434,537.70 = 201,218.20 : x - Step 2: Convert to fraction form
289,691.80/434,537.70 = 201,218.20/x - Step 3: Cross multiply
289,691.80x = 434,537.70 × 201,218.20 - Step 4: Simplify right side
289,691.80x = 87,436,893,826.14 - Step 5: Solve for x
x = 87,436,893,826.14/289,691.80 - Step 6: Final answer
x = 301,827.30
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1.5x scale
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.