Finding the Fourth Proportional to 207,605.70, 311,408.55 and 166,133.70
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Solution
The fourth proportional to 207,605.70, 311,408.55 and 166,133.70 is: 249,200.55
Step by Step Solution
- Step 1: Write the proportion equation
207,605.70 : 311,408.55 = 166,133.70 : x - Step 2: Convert to fraction form
207,605.70/311,408.55 = 166,133.70/x - Step 3: Cross multiply
207,605.70x = 311,408.55 × 166,133.70 - Step 4: Simplify right side
207,605.70x = 51,735,454,623.14 - Step 5: Solve for x
x = 51,735,454,623.14/207,605.70 - Step 6: Final answer
x = 249,200.55
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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.