Finding the Fourth Proportional to 283,725.24, 391,568.40 and 211,980.72
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Solution
The fourth proportional to 283,725.24, 391,568.40 and 211,980.72 is: 292,553.99
Step by Step Solution
- Step 1: Write the proportion equation
283,725.24 : 391,568.40 = 211,980.72 : x - Step 2: Convert to fraction form
283,725.24/391,568.40 = 211,980.72/x - Step 3: Cross multiply
283,725.24x = 391,568.40 × 211,980.72 - Step 4: Simplify right side
283,725.24x = 83,004,951,361.25 - Step 5: Solve for x
x = 83,004,951,361.25/283,725.24 - Step 6: Final answer
x = 292,553.99
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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.