Finding the Fourth Proportional to 222,418.84, 306,959.96 and 126,939.80
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Solution
The fourth proportional to 222,418.84, 306,959.96 and 126,939.80 is: 175,189.46
Step by Step Solution
- Step 1: Write the proportion equation
222,418.84 : 306,959.96 = 126,939.80 : x - Step 2: Convert to fraction form
222,418.84/306,959.96 = 126,939.80/x - Step 3: Cross multiply
222,418.84x = 306,959.96 × 126,939.80 - Step 4: Simplify right side
222,418.84x = 38,965,435,930.41 - Step 5: Solve for x
x = 38,965,435,930.41/222,418.84 - Step 6: Final answer
x = 175,189.46
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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.