Finding the Fourth Proportional to 236,216.18, 325,973.94 and 128,787.14
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Solution
The fourth proportional to 236,216.18, 325,973.94 and 128,787.14 is: 177,723.86
Step by Step Solution
- Step 1: Write the proportion equation
236,216.18 : 325,973.94 = 128,787.14 : x - Step 2: Convert to fraction form
236,216.18/325,973.94 = 128,787.14/x - Step 3: Cross multiply
236,216.18x = 325,973.94 × 128,787.14 - Step 4: Simplify right side
236,216.18x = 41,981,251,447.13 - Step 5: Solve for x
x = 41,981,251,447.13/236,216.18 - Step 6: Final answer
x = 177,723.86
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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.