Finding the Fourth Proportional to 326,078.60, 489,117.90 and 201,489.80
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Solution
The fourth proportional to 326,078.60, 489,117.90 and 201,489.80 is: 302,234.70
Step by Step Solution
- Step 1: Write the proportion equation
326,078.60 : 489,117.90 = 201,489.80 : x - Step 2: Convert to fraction form
326,078.60/489,117.90 = 201,489.80/x - Step 3: Cross multiply
326,078.60x = 489,117.90 × 201,489.80 - Step 4: Simplify right side
326,078.60x = 98,552,267,847.42 - Step 5: Solve for x
x = 98,552,267,847.42/326,078.60 - Step 6: Final answer
x = 302,234.70
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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.