Finding the Fourth Proportional to 283,514.94, 391,246.23 and 156,195.09
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Solution
The fourth proportional to 283,514.94, 391,246.23 and 156,195.09 is: 215,546.81
Step by Step Solution
- Step 1: Write the proportion equation
283,514.94 : 391,246.23 = 156,195.09 : x - Step 2: Convert to fraction form
283,514.94/391,246.23 = 156,195.09/x - Step 3: Cross multiply
283,514.94x = 391,246.23 × 156,195.09 - Step 4: Simplify right side
283,514.94x = 61,110,740,107.01 - Step 5: Solve for x
x = 61,110,740,107.01/283,514.94 - Step 6: Final answer
x = 215,546.81
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.