Finding the Fourth Proportional to 354,511.27, 489,465.11 and 272,694.23
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Solution
The fourth proportional to 354,511.27, 489,465.11 and 272,694.23 is: 376,502.31
Step by Step Solution
- Step 1: Write the proportion equation
354,511.27 : 489,465.11 = 272,694.23 : x - Step 2: Convert to fraction form
354,511.27/489,465.11 = 272,694.23/x - Step 3: Cross multiply
354,511.27x = 489,465.11 × 272,694.23 - Step 4: Simplify right side
354,511.27x = 133,474,311,283.32 - Step 5: Solve for x
x = 133,474,311,283.32/354,511.27 - Step 6: Final answer
x = 376,502.31
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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.