Finding the Fourth Proportional to 205,811.13, 283,929.21 and 120,889.92
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Solution
The fourth proportional to 205,811.13, 283,929.21 and 120,889.92 is: 166,775.14
Step by Step Solution
- Step 1: Write the proportion equation
205,811.13 : 283,929.21 = 120,889.92 : x - Step 2: Convert to fraction form
205,811.13/283,929.21 = 120,889.92/x - Step 3: Cross multiply
205,811.13x = 283,929.21 × 120,889.92 - Step 4: Simplify right side
205,811.13x = 34,324,179,482.56 - Step 5: Solve for x
x = 34,324,179,482.56/205,811.13 - Step 6: Final answer
x = 166,775.14
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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.