Finding the Fourth Proportional to 216,011.22, 298,109.82 and 120,519.99
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Solution
The fourth proportional to 216,011.22, 298,109.82 and 120,519.99 is: 166,325.58
Step by Step Solution
- Step 1: Write the proportion equation
216,011.22 : 298,109.82 = 120,519.99 : x - Step 2: Convert to fraction form
216,011.22/298,109.82 = 120,519.99/x - Step 3: Cross multiply
216,011.22x = 298,109.82 × 120,519.99 - Step 4: Simplify right side
216,011.22x = 35,928,192,525.30 - Step 5: Solve for x
x = 35,928,192,525.30/216,011.22 - Step 6: Final answer
x = 166,325.58
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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.