Finding the Fourth Proportional to 221,228.12, 305,296.62 and 120,626.12
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Solution
The fourth proportional to 221,228.12, 305,296.62 and 120,626.12 is: 166,465.03
Step by Step Solution
- Step 1: Write the proportion equation
221,228.12 : 305,296.62 = 120,626.12 : x - Step 2: Convert to fraction form
221,228.12/305,296.62 = 120,626.12/x - Step 3: Cross multiply
221,228.12x = 305,296.62 × 120,626.12 - Step 4: Simplify right side
221,228.12x = 36,826,746,719.71 - Step 5: Solve for x
x = 36,826,746,719.71/221,228.12 - Step 6: Final answer
x = 166,465.03
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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.