Finding the Fourth Proportional to 207,457.20, 311,202.16 and 102,218.80
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Solution
The fourth proportional to 207,457.20, 311,202.16 and 102,218.80 is: 153,336.26
Step by Step Solution
- Step 1: Write the proportion equation
207,457.20 : 311,202.16 = 102,218.80 : x - Step 2: Convert to fraction form
207,457.20/311,202.16 = 102,218.80/x - Step 3: Cross multiply
207,457.20x = 311,202.16 × 102,218.80 - Step 4: Simplify right side
207,457.20x = 31,810,711,352.61 - Step 5: Solve for x
x = 31,810,711,352.61/207,457.20 - Step 6: Final answer
x = 153,336.26
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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.