Finding the Fourth Proportional to 220,740.19, 304,621.46 and 120,138.19
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Solution
The fourth proportional to 220,740.19, 304,621.46 and 120,138.19 is: 165,790.70
Step by Step Solution
- Step 1: Write the proportion equation
220,740.19 : 304,621.46 = 120,138.19 : x - Step 2: Convert to fraction form
220,740.19/304,621.46 = 120,138.19/x - Step 3: Cross multiply
220,740.19x = 304,621.46 × 120,138.19 - Step 4: Simplify right side
220,740.19x = 36,596,669,927.83 - Step 5: Solve for x
x = 36,596,669,927.83/220,740.19 - Step 6: Final answer
x = 165,790.70
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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.