Finding the Fourth Proportional to 371,908.22, 513,236.74 and 202,142.76
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Solution
The fourth proportional to 371,908.22, 513,236.74 and 202,142.76 is: 278,958.85
Step by Step Solution
- Step 1: Write the proportion equation
371,908.22 : 513,236.74 = 202,142.76 : x - Step 2: Convert to fraction form
371,908.22/513,236.74 = 202,142.76/x - Step 3: Cross multiply
371,908.22x = 513,236.74 × 202,142.76 - Step 4: Simplify right side
371,908.22x = 103,747,091,157.00 - Step 5: Solve for x
x = 103,747,091,157.00/371,908.22 - Step 6: Final answer
x = 278,958.85
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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.