Finding the Fourth Proportional to 212,548.05, 293,306.81 and 121,838.97
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Solution
The fourth proportional to 212,548.05, 293,306.81 and 121,838.97 is: 168,132.33
Step by Step Solution
- Step 1: Write the proportion equation
212,548.05 : 293,306.81 = 121,838.97 : x - Step 2: Convert to fraction form
212,548.05/293,306.81 = 121,838.97/x - Step 3: Cross multiply
212,548.05x = 293,306.81 × 121,838.97 - Step 4: Simplify right side
212,548.05x = 35,736,199,015.19 - Step 5: Solve for x
x = 35,736,199,015.19/212,548.05 - Step 6: Final answer
x = 168,132.33
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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.