Finding the Fourth Proportional to 235,504.12, 324,992.60 and 128,071.84
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Solution
The fourth proportional to 235,504.12, 324,992.60 and 128,071.84 is: 176,737.46
Step by Step Solution
- Step 1: Write the proportion equation
235,504.12 : 324,992.60 = 128,071.84 : x - Step 2: Convert to fraction form
235,504.12/324,992.60 = 128,071.84/x - Step 3: Cross multiply
235,504.12x = 324,992.60 × 128,071.84 - Step 4: Simplify right side
235,504.12x = 41,622,400,268.38 - Step 5: Solve for x
x = 41,622,400,268.38/235,504.12 - Step 6: Final answer
x = 176,737.46
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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.