Finding the Fourth Proportional to 236,008.84, 325,690.50 and 128,578.84
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Solution
The fourth proportional to 236,008.84, 325,690.50 and 128,578.84 is: 177,437.87
Step by Step Solution
- Step 1: Write the proportion equation
236,008.84 : 325,690.50 = 128,578.84 : x - Step 2: Convert to fraction form
236,008.84/325,690.50 = 128,578.84/x - Step 3: Cross multiply
236,008.84x = 325,690.50 × 128,578.84 - Step 4: Simplify right side
236,008.84x = 41,876,906,689.02 - Step 5: Solve for x
x = 41,876,906,689.02/236,008.84 - Step 6: Final answer
x = 177,437.87
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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.