Finding the Fourth Proportional to 216,825.74, 299,232.06 and 121,331.60
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Solution
The fourth proportional to 216,825.74, 299,232.06 and 121,331.60 is: 167,444.62
Step by Step Solution
- Step 1: Write the proportion equation
216,825.74 : 299,232.06 = 121,331.60 : x - Step 2: Convert to fraction form
216,825.74/299,232.06 = 121,331.60/x - Step 3: Cross multiply
216,825.74x = 299,232.06 × 121,331.60 - Step 4: Simplify right side
216,825.74x = 36,306,304,611.10 - Step 5: Solve for x
x = 36,306,304,611.10/216,825.74 - Step 6: Final answer
x = 167,444.62
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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.