Finding the Fourth Proportional to 235,504.36, 324,992.96 and 128,072.10
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Solution
The fourth proportional to 235,504.36, 324,992.96 and 128,072.10 is: 176,737.84
Step by Step Solution
- Step 1: Write the proportion equation
235,504.36 : 324,992.96 = 128,072.10 : x - Step 2: Convert to fraction form
235,504.36/324,992.96 = 128,072.10/x - Step 3: Cross multiply
235,504.36x = 324,992.96 × 128,072.10 - Step 4: Simplify right side
235,504.36x = 41,622,531,931.05 - Step 5: Solve for x
x = 41,622,531,931.05/235,504.36 - Step 6: Final answer
x = 176,737.84
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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.