Finding the Fourth Proportional to 220,976.62, 304,947.76 and 120,374.62
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Solution
The fourth proportional to 220,976.62, 304,947.76 and 120,374.62 is: 166,116.99
Step by Step Solution
- Step 1: Write the proportion equation
220,976.62 : 304,947.76 = 120,374.62 : x - Step 2: Convert to fraction form
220,976.62/304,947.76 = 120,374.62/x - Step 3: Cross multiply
220,976.62x = 304,947.76 × 120,374.62 - Step 4: Simplify right side
220,976.62x = 36,707,969,666.55 - Step 5: Solve for x
x = 36,707,969,666.55/220,976.62 - Step 6: Final answer
x = 166,116.99
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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.