Finding the Fourth Proportional to 207,122.16, 285,826.70 and 116,478.75
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Solution
The fourth proportional to 207,122.16, 285,826.70 and 116,478.75 is: 160,739.62
Step by Step Solution
- Step 1: Write the proportion equation
207,122.16 : 285,826.70 = 116,478.75 : x - Step 2: Convert to fraction form
207,122.16/285,826.70 = 116,478.75/x - Step 3: Cross multiply
207,122.16x = 285,826.70 × 116,478.75 - Step 4: Simplify right side
207,122.16x = 33,292,736,732.63 - Step 5: Solve for x
x = 33,292,736,732.63/207,122.16 - Step 6: Final answer
x = 160,739.62
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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.