Finding the Fourth Proportional to 236,785.32, 326,764.08 and 129,357.18
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Solution
The fourth proportional to 236,785.32, 326,764.08 and 129,357.18 is: 178,513.09
Step by Step Solution
- Step 1: Write the proportion equation
236,785.32 : 326,764.08 = 129,357.18 : x - Step 2: Convert to fraction form
236,785.32/326,764.08 = 129,357.18/x - Step 3: Cross multiply
236,785.32x = 326,764.08 × 129,357.18 - Step 4: Simplify right side
236,785.32x = 42,269,279,914.09 - Step 5: Solve for x
x = 42,269,279,914.09/236,785.32 - Step 6: Final answer
x = 178,513.09
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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.