Finding the Fourth Proportional to 236,945.76, 326,993.94 and 129,523.08
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Solution
The fourth proportional to 236,945.76, 326,993.94 and 129,523.08 is: 178,746.66
Step by Step Solution
- Step 1: Write the proportion equation
236,945.76 : 326,993.94 = 129,523.08 : x - Step 2: Convert to fraction form
236,945.76/326,993.94 = 129,523.08/x - Step 3: Cross multiply
236,945.76x = 326,993.94 × 129,523.08 - Step 4: Simplify right side
236,945.76x = 42,353,262,250.14 - Step 5: Solve for x
x = 42,353,262,250.14/236,945.76 - Step 6: Final answer
x = 178,746.66
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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.