Finding the Fourth Proportional to 208,299.76, 312,317.20 and 176,720.70
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Solution
The fourth proportional to 208,299.76, 312,317.20 and 176,720.70 is: 264,968.69
Step by Step Solution
- Step 1: Write the proportion equation
208,299.76 : 312,317.20 = 176,720.70 : x - Step 2: Convert to fraction form
208,299.76/312,317.20 = 176,720.70/x - Step 3: Cross multiply
208,299.76x = 312,317.20 × 176,720.70 - Step 4: Simplify right side
208,299.76x = 55,192,914,206.04 - Step 5: Solve for x
x = 55,192,914,206.04/208,299.76 - Step 6: Final answer
x = 264,968.69
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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.