Finding the Fourth Proportional to 214,639.53, 321,855.61 and 125,921.85
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Solution
The fourth proportional to 214,639.53, 321,855.61 and 125,921.85 is: 188,821.95
Step by Step Solution
- Step 1: Write the proportion equation
214,639.53 : 321,855.61 = 125,921.85 : x - Step 2: Convert to fraction form
214,639.53/321,855.61 = 125,921.85/x - Step 3: Cross multiply
214,639.53x = 321,855.61 × 125,921.85 - Step 4: Simplify right side
214,639.53x = 40,528,653,844.08 - Step 5: Solve for x
x = 40,528,653,844.08/214,639.53 - Step 6: Final answer
x = 188,821.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.