Finding the Fourth Proportional to 371,787.18, 513,069.38 and 202,021.31
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Solution
The fourth proportional to 371,787.18, 513,069.38 and 202,021.31 is: 278,791.07
Step by Step Solution
- Step 1: Write the proportion equation
371,787.18 : 513,069.38 = 202,021.31 : x - Step 2: Convert to fraction form
371,787.18/513,069.38 = 202,021.31/x - Step 3: Cross multiply
371,787.18x = 513,069.38 × 202,021.31 - Step 4: Simplify right side
371,787.18x = 103,650,946,208.19 - Step 5: Solve for x
x = 103,650,946,208.19/371,787.18 - Step 6: Final answer
x = 278,791.07
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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.