Finding the Fourth Proportional to 221,226.19, 305,292.44 and 120,624.19
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Solution
The fourth proportional to 221,226.19, 305,292.44 and 120,624.19 is: 166,461.54
Step by Step Solution
- Step 1: Write the proportion equation
221,226.19 : 305,292.44 = 120,624.19 : x - Step 2: Convert to fraction form
221,226.19/305,292.44 = 120,624.19/x - Step 3: Cross multiply
221,226.19x = 305,292.44 × 120,624.19 - Step 4: Simplify right side
221,226.19x = 36,825,652,826.45 - Step 5: Solve for x
x = 36,825,652,826.45/221,226.19 - Step 6: Final answer
x = 166,461.54
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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.