Finding the Fourth Proportional to 216,122.13, 298,251.62 and 120,628.83
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Solution
The fourth proportional to 216,122.13, 298,251.62 and 120,628.83 is: 166,469.50
Step by Step Solution
- Step 1: Write the proportion equation
216,122.13 : 298,251.62 = 120,628.83 : x - Step 2: Convert to fraction form
216,122.13/298,251.62 = 120,628.83/x - Step 3: Cross multiply
216,122.13x = 298,251.62 × 120,628.83 - Step 4: Simplify right side
216,122.13x = 35,977,743,256.20 - Step 5: Solve for x
x = 35,977,743,256.20/216,122.13 - Step 6: Final answer
x = 166,469.50
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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.