Finding the Fourth Proportional to 236,145.36, 325,871.01 and 128,713.08
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Solution
The fourth proportional to 236,145.36, 325,871.01 and 128,713.08 is: 177,618.83
Step by Step Solution
- Step 1: Write the proportion equation
236,145.36 : 325,871.01 = 128,713.08 : x - Step 2: Convert to fraction form
236,145.36/325,871.01 = 128,713.08/x - Step 3: Cross multiply
236,145.36x = 325,871.01 × 128,713.08 - Step 4: Simplify right side
236,145.36x = 41,943,861,379.81 - Step 5: Solve for x
x = 41,943,861,379.81/236,145.36 - Step 6: Final answer
x = 177,618.83
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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.