Finding the Fourth Proportional to 207,953.99, 311,986.25 and 65,801.79
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Solution
The fourth proportional to 207,953.99, 311,986.25 and 65,801.79 is: 98,720.17
Step by Step Solution
- Step 1: Write the proportion equation
207,953.99 : 311,986.25 = 65,801.79 : x - Step 2: Convert to fraction form
207,953.99/311,986.25 = 65,801.79/x - Step 3: Cross multiply
207,953.99x = 311,986.25 × 65,801.79 - Step 4: Simplify right side
207,953.99x = 20,529,252,791.40 - Step 5: Solve for x
x = 20,529,252,791.40/207,953.99 - Step 6: Final answer
x = 98,720.17
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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.