Finding the Fourth Proportional to 236,154.68, 325,896.84 and 128,724.71
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Solution
The fourth proportional to 236,154.68, 325,896.84 and 128,724.71 is: 177,641.94
Step by Step Solution
- Step 1: Write the proportion equation
236,154.68 : 325,896.84 = 128,724.71 : x - Step 2: Convert to fraction form
236,154.68/325,896.84 = 128,724.71/x - Step 3: Cross multiply
236,154.68x = 325,896.84 × 128,724.71 - Step 4: Simplify right side
236,154.68x = 41,950,974,589.43 - Step 5: Solve for x
x = 41,950,974,589.43/236,154.68 - Step 6: Final answer
x = 177,641.94
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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.