Finding the Fourth Proportional to 235,943.88, 325,603.02 and 128,513.58
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Solution
The fourth proportional to 235,943.88, 325,603.02 and 128,513.58 is: 177,348.99
Step by Step Solution
- Step 1: Write the proportion equation
235,943.88 : 325,603.02 = 128,513.58 : x - Step 2: Convert to fraction form
235,943.88/325,603.02 = 128,513.58/x - Step 3: Cross multiply
235,943.88x = 325,603.02 × 128,513.58 - Step 4: Simplify right side
235,943.88x = 41,844,409,759.01 - Step 5: Solve for x
x = 41,844,409,759.01/235,943.88 - Step 6: Final answer
x = 177,348.99
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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.