Finding the Fourth Proportional to 326,528.75, 489,982.09 and 136,972.14
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Solution
The fourth proportional to 326,528.75, 489,982.09 and 136,972.14 is: 205,537.48
Step by Step Solution
- Step 1: Write the proportion equation
326,528.75 : 489,982.09 = 136,972.14 : x - Step 2: Convert to fraction form
326,528.75/489,982.09 = 136,972.14/x - Step 3: Cross multiply
326,528.75x = 489,982.09 × 136,972.14 - Step 4: Simplify right side
326,528.75x = 67,113,895,428.97 - Step 5: Solve for x
x = 67,113,895,428.97/326,528.75 - Step 6: Final answer
x = 205,537.48
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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.