Finding the Fourth Proportional to 222,456.91, 306,988.98 and 120,480.07
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Solution
The fourth proportional to 222,456.91, 306,988.98 and 120,480.07 is: 166,261.65
Step by Step Solution
- Step 1: Write the proportion equation
222,456.91 : 306,988.98 = 120,480.07 : x - Step 2: Convert to fraction form
222,456.91/306,988.98 = 120,480.07/x - Step 3: Cross multiply
222,456.91x = 306,988.98 × 120,480.07 - Step 4: Simplify right side
222,456.91x = 36,986,053,799.63 - Step 5: Solve for x
x = 36,986,053,799.63/222,456.91 - Step 6: Final answer
x = 166,261.65
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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.