Finding the Fourth Proportional to 235,996.43, 325,673.79 and 128,566.20
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Solution
The fourth proportional to 235,996.43, 325,673.79 and 128,566.20 is: 177,420.66
Step by Step Solution
- Step 1: Write the proportion equation
235,996.43 : 325,673.79 = 128,566.20 : x - Step 2: Convert to fraction form
235,996.43/325,673.79 = 128,566.20/x - Step 3: Cross multiply
235,996.43x = 325,673.79 × 128,566.20 - Step 4: Simplify right side
235,996.43x = 41,870,641,619.90 - Step 5: Solve for x
x = 41,870,641,619.90/235,996.43 - Step 6: Final answer
x = 177,420.66
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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.