Finding the Fourth Proportional to 371,787.08, 513,069.42 and 202,021.20
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Solution
The fourth proportional to 371,787.08, 513,069.42 and 202,021.20 is: 278,791.03
Step by Step Solution
- Step 1: Write the proportion equation
371,787.08 : 513,069.42 = 202,021.20 : x - Step 2: Convert to fraction form
371,787.08/513,069.42 = 202,021.20/x - Step 3: Cross multiply
371,787.08x = 513,069.42 × 202,021.20 - Step 4: Simplify right side
371,787.08x = 103,650,899,911.70 - Step 5: Solve for x
x = 103,650,899,911.70/371,787.08 - Step 6: Final answer
x = 278,791.03
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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.