Finding the Fourth Proportional to 326,839.68, 489,805.92 and 148,911.84
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Solution
The fourth proportional to 326,839.68, 489,805.92 and 148,911.84 is: 223,161.09
Step by Step Solution
- Step 1: Write the proportion equation
326,839.68 : 489,805.92 = 148,911.84 : x - Step 2: Convert to fraction form
326,839.68/489,805.92 = 148,911.84/x - Step 3: Cross multiply
326,839.68x = 489,805.92 × 148,911.84 - Step 4: Simplify right side
326,839.68x = 72,937,900,790.09 - Step 5: Solve for x
x = 72,937,900,790.09/326,839.68 - Step 6: Final answer
x = 223,161.09
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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.