Finding the Fourth Proportional to 371,678.40, 512,890.92 and 201,908.88
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Solution
The fourth proportional to 371,678.40, 512,890.92 and 201,908.88 is: 278,620.53
Step by Step Solution
- Step 1: Write the proportion equation
371,678.40 : 512,890.92 = 201,908.88 : x - Step 2: Convert to fraction form
371,678.40/512,890.92 = 201,908.88/x - Step 3: Cross multiply
371,678.40x = 512,890.92 × 201,908.88 - Step 4: Simplify right side
371,678.40x = 103,557,231,219.37 - Step 5: Solve for x
x = 103,557,231,219.37/371,678.40 - Step 6: Final answer
x = 278,620.53
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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.