Finding the Fourth Proportional to 207,277.20, 310,915.80 and 143,963.55
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Solution
The fourth proportional to 207,277.20, 310,915.80 and 143,963.55 is: 215,945.33
Step by Step Solution
- Step 1: Write the proportion equation
207,277.20 : 310,915.80 = 143,963.55 : x - Step 2: Convert to fraction form
207,277.20/310,915.80 = 143,963.55/x - Step 3: Cross multiply
207,277.20x = 310,915.80 × 143,963.55 - Step 4: Simplify right side
207,277.20x = 44,760,542,319.09 - Step 5: Solve for x
x = 44,760,542,319.09/207,277.20 - Step 6: Final answer
x = 215,945.33
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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.