Finding the Fourth Proportional to 236,109.09, 325,821.04 and 128,676.81
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Solution
The fourth proportional to 236,109.09, 325,821.04 and 128,676.81 is: 177,568.82
Step by Step Solution
- Step 1: Write the proportion equation
236,109.09 : 325,821.04 = 128,676.81 : x - Step 2: Convert to fraction form
236,109.09/325,821.04 = 128,676.81/x - Step 3: Cross multiply
236,109.09x = 325,821.04 × 128,676.81 - Step 4: Simplify right side
236,109.09x = 41,925,611,243.53 - Step 5: Solve for x
x = 41,925,611,243.53/236,109.09 - Step 6: Final answer
x = 177,568.82
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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.