Finding the Fourth Proportional to 216,112.05, 298,228.43 and 120,616.70
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Solution
The fourth proportional to 216,112.05, 298,228.43 and 120,616.70 is: 166,447.58
Step by Step Solution
- Step 1: Write the proportion equation
216,112.05 : 298,228.43 = 120,616.70 : x - Step 2: Convert to fraction form
216,112.05/298,228.43 = 120,616.70/x - Step 3: Cross multiply
216,112.05x = 298,228.43 × 120,616.70 - Step 4: Simplify right side
216,112.05x = 35,971,327,883.18 - Step 5: Solve for x
x = 35,971,327,883.18/216,112.05 - Step 6: Final answer
x = 166,447.58
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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.