Finding the Fourth Proportional to 220,246.50, 303,914.39 and 129,582.53
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Solution
The fourth proportional to 220,246.50, 303,914.39 and 129,582.53 is: 178,808.71
Step by Step Solution
- Step 1: Write the proportion equation
220,246.50 : 303,914.39 = 129,582.53 : x - Step 2: Convert to fraction form
220,246.50/303,914.39 = 129,582.53/x - Step 3: Cross multiply
220,246.50x = 303,914.39 × 129,582.53 - Step 4: Simplify right side
220,246.50x = 39,381,993,392.12 - Step 5: Solve for x
x = 39,381,993,392.12/220,246.50 - Step 6: Final answer
x = 178,808.71
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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.