Finding the Fourth Proportional to 371,685.85, 512,927.09 and 201,920.11
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Solution
The fourth proportional to 371,685.85, 512,927.09 and 201,920.11 is: 278,650.09
Step by Step Solution
- Step 1: Write the proportion equation
371,685.85 : 512,927.09 = 201,920.11 : x - Step 2: Convert to fraction form
371,685.85/512,927.09 = 201,920.11/x - Step 3: Cross multiply
371,685.85x = 512,927.09 × 201,920.11 - Step 4: Simplify right side
371,685.85x = 103,570,294,434.78 - Step 5: Solve for x
x = 103,570,294,434.78/371,685.85 - Step 6: Final answer
x = 278,650.09
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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.