Finding the Fourth Proportional to 236,036.70, 325,734.36 and 128,606.70
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Solution
The fourth proportional to 236,036.70, 325,734.36 and 128,606.70 is: 177,479.27
Step by Step Solution
- Step 1: Write the proportion equation
236,036.70 : 325,734.36 = 128,606.70 : x - Step 2: Convert to fraction form
236,036.70/325,734.36 = 128,606.70/x - Step 3: Cross multiply
236,036.70x = 325,734.36 × 128,606.70 - Step 4: Simplify right side
236,036.70x = 41,891,621,116.21 - Step 5: Solve for x
x = 41,891,621,116.21/236,036.70 - Step 6: Final answer
x = 177,479.27
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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.