Finding the Fourth Proportional to 236,086.13, 325,798.91 and 128,656.18
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Solution
The fourth proportional to 236,086.13, 325,798.91 and 128,656.18 is: 177,545.56
Step by Step Solution
- Step 1: Write the proportion equation
236,086.13 : 325,798.91 = 128,656.18 : x - Step 2: Convert to fraction form
236,086.13/325,798.91 = 128,656.18/x - Step 3: Cross multiply
236,086.13x = 325,798.91 × 128,656.18 - Step 4: Simplify right side
236,086.13x = 41,916,043,455.19 - Step 5: Solve for x
x = 41,916,043,455.19/236,086.13 - Step 6: Final answer
x = 177,545.56
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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.