Finding the Fourth Proportional to 212,426.28, 293,113.94 and 121,765.56
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Solution
The fourth proportional to 212,426.28, 293,113.94 and 121,765.56 is: 168,016.80
Step by Step Solution
- Step 1: Write the proportion equation
212,426.28 : 293,113.94 = 121,765.56 : x - Step 2: Convert to fraction form
212,426.28/293,113.94 = 121,765.56/x - Step 3: Cross multiply
212,426.28x = 293,113.94 × 121,765.56 - Step 4: Simplify right side
212,426.28x = 35,691,183,047.91 - Step 5: Solve for x
x = 35,691,183,047.91/212,426.28 - Step 6: Final answer
x = 168,016.80
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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.