Finding the Fourth Proportional to 326,425.17, 489,542.99 and 136,880.62
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Solution
The fourth proportional to 326,425.17, 489,542.99 and 136,880.62 is: 205,281.19
Step by Step Solution
- Step 1: Write the proportion equation
326,425.17 : 489,542.99 = 136,880.62 : x - Step 2: Convert to fraction form
326,425.17/489,542.99 = 136,880.62/x - Step 3: Cross multiply
326,425.17x = 489,542.99 × 136,880.62 - Step 4: Simplify right side
326,425.17x = 67,008,946,849.55 - Step 5: Solve for x
x = 67,008,946,849.55/326,425.17 - Step 6: Final answer
x = 205,281.19
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1.5x scale
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.