Finding the Fourth Proportional to 216,438.88, 298,683.84 and 120,944.48
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Solution
The fourth proportional to 216,438.88, 298,683.84 and 120,944.48 is: 166,902.37
Step by Step Solution
- Step 1: Write the proportion equation
216,438.88 : 298,683.84 = 120,944.48 : x - Step 2: Convert to fraction form
216,438.88/298,683.84 = 120,944.48/x - Step 3: Cross multiply
216,438.88x = 298,683.84 × 120,944.48 - Step 4: Simplify right side
216,438.88x = 36,124,161,713.20 - Step 5: Solve for x
x = 36,124,161,713.20/216,438.88 - Step 6: Final answer
x = 166,902.37
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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.