Finding the Fourth Proportional to 371,787.22, 513,065.40 and 202,021.36
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Solution
The fourth proportional to 371,787.22, 513,065.40 and 202,021.36 is: 278,788.95
Step by Step Solution
- Step 1: Write the proportion equation
371,787.22 : 513,065.40 = 202,021.36 : x - Step 2: Convert to fraction form
371,787.22/513,065.40 = 202,021.36/x - Step 3: Cross multiply
371,787.22x = 513,065.40 × 202,021.36 - Step 4: Simplify right side
371,787.22x = 103,650,169,876.94 - Step 5: Solve for x
x = 103,650,169,876.94/371,787.22 - Step 6: Final answer
x = 278,788.95
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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.