Finding the Fourth Proportional to 207,496.15, 311,201.70 and 57,698.80
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Solution
The fourth proportional to 207,496.15, 311,201.70 and 57,698.80 is: 86,536.38
Step by Step Solution
- Step 1: Write the proportion equation
207,496.15 : 311,201.70 = 57,698.80 : x - Step 2: Convert to fraction form
207,496.15/311,201.70 = 57,698.80/x - Step 3: Cross multiply
207,496.15x = 311,201.70 × 57,698.80 - Step 4: Simplify right side
207,496.15x = 17,955,964,647.96 - Step 5: Solve for x
x = 17,955,964,647.96/207,496.15 - Step 6: Final answer
x = 86,536.38
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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.