Finding the Fourth Proportional to 371,986.20, 513,304.97 and 208,649.16
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Solution
The fourth proportional to 371,986.20, 513,304.97 and 208,649.16 is: 287,915.65
Step by Step Solution
- Step 1: Write the proportion equation
371,986.20 : 513,304.97 = 208,649.16 : x - Step 2: Convert to fraction form
371,986.20/513,304.97 = 208,649.16/x - Step 3: Cross multiply
371,986.20x = 513,304.97 × 208,649.16 - Step 4: Simplify right side
371,986.20x = 107,100,649,771.08 - Step 5: Solve for x
x = 107,100,649,771.08/371,986.20 - Step 6: Final answer
x = 287,915.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.