Finding the Fourth Proportional to 236,118.36, 325,833.78 and 128,686.08
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Solution
The fourth proportional to 236,118.36, 325,833.78 and 128,686.08 is: 177,581.58
Step by Step Solution
- Step 1: Write the proportion equation
236,118.36 : 325,833.78 = 128,686.08 : x - Step 2: Convert to fraction form
236,118.36/325,833.78 = 128,686.08/x - Step 3: Cross multiply
236,118.36x = 325,833.78 × 128,686.08 - Step 4: Simplify right side
236,118.36x = 41,930,271,879.78 - Step 5: Solve for x
x = 41,930,271,879.78/236,118.36 - Step 6: Final answer
x = 177,581.58
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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.