Finding the Fourth Proportional to 214,640.07, 321,959.84 and 81,520.08
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Solution
The fourth proportional to 214,640.07, 321,959.84 and 81,520.08 is: 122,280.02
Step by Step Solution
- Step 1: Write the proportion equation
214,640.07 : 321,959.84 = 81,520.08 : x - Step 2: Convert to fraction form
214,640.07/321,959.84 = 81,520.08/x - Step 3: Cross multiply
214,640.07x = 321,959.84 × 81,520.08 - Step 4: Simplify right side
214,640.07x = 26,246,191,505.99 - Step 5: Solve for x
x = 26,246,191,505.99/214,640.07 - Step 6: Final answer
x = 122,280.02
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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.