Finding the Fourth Proportional to 220,233.76, 303,920.80 and 119,631.68
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Solution
The fourth proportional to 220,233.76, 303,920.80 and 119,631.68 is: 165,090.75
Step by Step Solution
- Step 1: Write the proportion equation
220,233.76 : 303,920.80 = 119,631.68 : x - Step 2: Convert to fraction form
220,233.76/303,920.80 = 119,631.68/x - Step 3: Cross multiply
220,233.76x = 303,920.80 × 119,631.68 - Step 4: Simplify right side
220,233.76x = 36,358,555,890.94 - Step 5: Solve for x
x = 36,358,555,890.94/220,233.76 - Step 6: Final answer
x = 165,090.75
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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.