Finding the Fourth Proportional to 216,012.22, 298,111.20 and 120,520.99
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Solution
The fourth proportional to 216,012.22, 298,111.20 and 120,520.99 is: 166,326.96
Step by Step Solution
- Step 1: Write the proportion equation
216,012.22 : 298,111.20 = 120,520.99 : x - Step 2: Convert to fraction form
216,012.22/298,111.20 = 120,520.99/x - Step 3: Cross multiply
216,012.22x = 298,111.20 × 120,520.99 - Step 4: Simplify right side
216,012.22x = 35,928,656,954.09 - Step 5: Solve for x
x = 35,928,656,954.09/216,012.22 - Step 6: Final answer
x = 166,326.96
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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.