Finding the Fourth Proportional to 235,777.49, 325,372.96 and 128,348.31
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Solution
The fourth proportional to 235,777.49, 325,372.96 and 128,348.31 is: 177,120.68
Step by Step Solution
- Step 1: Write the proportion equation
235,777.49 : 325,372.96 = 128,348.31 : x - Step 2: Convert to fraction form
235,777.49/325,372.96 = 128,348.31/x - Step 3: Cross multiply
235,777.49x = 325,372.96 × 128,348.31 - Step 4: Simplify right side
235,777.49x = 41,761,069,535.70 - Step 5: Solve for x
x = 41,761,069,535.70/235,777.49 - Step 6: Final answer
x = 177,120.68
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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.