Finding the Fourth Proportional to 225,877.68, 311,720.96 and 135,216.09
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Solution
The fourth proportional to 225,877.68, 311,720.96 and 135,216.09 is: 186,604.05
Step by Step Solution
- Step 1: Write the proportion equation
225,877.68 : 311,720.96 = 135,216.09 : x - Step 2: Convert to fraction form
225,877.68/311,720.96 = 135,216.09/x - Step 3: Cross multiply
225,877.68x = 311,720.96 × 135,216.09 - Step 4: Simplify right side
225,877.68x = 42,149,689,720.29 - Step 5: Solve for x
x = 42,149,689,720.29/225,877.68 - Step 6: Final answer
x = 186,604.05
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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.