Finding the Fourth Proportional to 235,866.62, 325,491.26 and 128,437.94
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Solution
The fourth proportional to 235,866.62, 325,491.26 and 128,437.94 is: 177,241.81
Step by Step Solution
- Step 1: Write the proportion equation
235,866.62 : 325,491.26 = 128,437.94 : x - Step 2: Convert to fraction form
235,866.62/325,491.26 = 128,437.94/x - Step 3: Cross multiply
235,866.62x = 325,491.26 × 128,437.94 - Step 4: Simplify right side
235,866.62x = 41,805,426,922.40 - Step 5: Solve for x
x = 41,805,426,922.40/235,866.62 - Step 6: Final answer
x = 177,241.81
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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.