Finding the Fourth Proportional to 207,605.20, 311,407.80 and 166,133.20
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Solution
The fourth proportional to 207,605.20, 311,407.80 and 166,133.20 is: 249,199.80
Step by Step Solution
- Step 1: Write the proportion equation
207,605.20 : 311,407.80 = 166,133.20 : x - Step 2: Convert to fraction form
207,605.20/311,407.80 = 166,133.20/x - Step 3: Cross multiply
207,605.20x = 311,407.80 × 166,133.20 - Step 4: Simplify right side
207,605.20x = 51,735,174,318.96 - Step 5: Solve for x
x = 51,735,174,318.96/207,605.20 - Step 6: Final answer
x = 249,199.80
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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.