Finding the Fourth Proportional to 326,083.80, 489,125.70 and 115,694.40
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Solution
The fourth proportional to 326,083.80, 489,125.70 and 115,694.40 is: 173,541.60
Step by Step Solution
- Step 1: Write the proportion equation
326,083.80 : 489,125.70 = 115,694.40 : x - Step 2: Convert to fraction form
326,083.80/489,125.70 = 115,694.40/x - Step 3: Cross multiply
326,083.80x = 489,125.70 × 115,694.40 - Step 4: Simplify right side
326,083.80x = 56,589,104,386.08 - Step 5: Solve for x
x = 56,589,104,386.08/326,083.80 - Step 6: Final answer
x = 173,541.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.