Finding the Fourth Proportional to 235,669.33, 325,218.36 and 128,239.66
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Solution
The fourth proportional to 235,669.33, 325,218.36 and 128,239.66 is: 176,967.84
Step by Step Solution
- Step 1: Write the proportion equation
235,669.33 : 325,218.36 = 128,239.66 : x - Step 2: Convert to fraction form
235,669.33/325,218.36 = 128,239.66/x - Step 3: Cross multiply
235,669.33x = 325,218.36 × 128,239.66 - Step 4: Simplify right side
235,669.33x = 41,705,891,912.16 - Step 5: Solve for x
x = 41,705,891,912.16/235,669.33 - Step 6: Final answer
x = 176,967.84
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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.