Finding the Fourth Proportional to 236,415.36, 326,250.09 and 128,983.08
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Solution
The fourth proportional to 236,415.36, 326,250.09 and 128,983.08 is: 177,994.96
Step by Step Solution
- Step 1: Write the proportion equation
236,415.36 : 326,250.09 = 128,983.08 : x - Step 2: Convert to fraction form
236,415.36/326,250.09 = 128,983.08/x - Step 3: Cross multiply
236,415.36x = 326,250.09 × 128,983.08 - Step 4: Simplify right side
236,415.36x = 42,080,741,458.48 - Step 5: Solve for x
x = 42,080,741,458.48/236,415.36 - Step 6: Final answer
x = 177,994.96
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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.