Finding the Fourth Proportional to 326,083.80, 489,125.70 and 282,343.80
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Solution
The fourth proportional to 326,083.80, 489,125.70 and 282,343.80 is: 423,515.70
Step by Step Solution
- Step 1: Write the proportion equation
326,083.80 : 489,125.70 = 282,343.80 : x - Step 2: Convert to fraction form
326,083.80/489,125.70 = 282,343.80/x - Step 3: Cross multiply
326,083.80x = 489,125.70 × 282,343.80 - Step 4: Simplify right side
326,083.80x = 138,101,608,815.66 - Step 5: Solve for x
x = 138,101,608,815.66/326,083.80 - Step 6: Final answer
x = 423,515.70
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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.