Finding the Fourth Proportional to 236,083.13, 325,794.21 and 128,652.90
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Solution
The fourth proportional to 236,083.13, 325,794.21 and 128,652.90 is: 177,540.72
Step by Step Solution
- Step 1: Write the proportion equation
236,083.13 : 325,794.21 = 128,652.90 : x - Step 2: Convert to fraction form
236,083.13/325,794.21 = 128,652.90/x - Step 3: Cross multiply
236,083.13x = 325,794.21 × 128,652.90 - Step 4: Simplify right side
236,083.13x = 41,914,369,919.71 - Step 5: Solve for x
x = 41,914,369,919.71/236,083.13 - Step 6: Final answer
x = 177,540.72
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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.