Finding the Fourth Proportional to 235,496.34, 324,991.08 and 128,072.70
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Solution
The fourth proportional to 235,496.34, 324,991.08 and 128,072.70 is: 176,743.66
Step by Step Solution
- Step 1: Write the proportion equation
235,496.34 : 324,991.08 = 128,072.70 : x - Step 2: Convert to fraction form
235,496.34/324,991.08 = 128,072.70/x - Step 3: Cross multiply
235,496.34x = 324,991.08 × 128,072.70 - Step 4: Simplify right side
235,496.34x = 41,622,485,091.52 - Step 5: Solve for x
x = 41,622,485,091.52/235,496.34 - Step 6: Final answer
x = 176,743.66
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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.